The summer is starting to cool off, and we're more than half way through the preseason. There are the guys who are just going through the motions, getting their reps and will have little to worry about. There are the rookies and younger guys, trying to make an impact, trying to make that leap to the next level. And there are the guys in the middle that are typically fighting for a job, for their livelihood. (Note: Typically, the guys in this last group don't make very interesting fantasy targets.) One of the major storylines of this past offseason and preseason has been change. There weren't many newsworthy retirements, at least not on the offensive side of the ball. But we did have a number of high-profile players changing teams, and we've had a number of guys already suffer significant injuries. So let's discuss some of those players, their role on their new teams, and who can possibly fill their shoes with their old teams. Alex Smith Kansas City: While I don't know how well he'll do throwing the ball as often as he'll be asked to, Smith does figure to benefit from the West Coast offense that coach Andy Reid brings with him, a system that emphasizes short, precise routes and accuracy, which Smith has. While I wouldn't be comfortable with him as my starter, he's an interesting backup option. San Francisco: I don't think Jim Harbaugh will lose any sleep over this one. He needs to find a capable backup since Colin Kaepernick runs so much, but there's no fantasy relevance. Carson Palmer Arizona: Palmer represents a massive upgrade over the Kevin Kolb/John Skelton/Brian Hoyer/Ryan Lindley committee. Even if those four guys could somehow morph into some kind of quarterback Voltron, that thing would still suck. Expect a big season from Larry Fitzgerald, who may be a top 5 fantasy receiver again, and solid production from Andre Roberts. He's an interesting QB2. Oakland: Let's just move on ... Steven Jackson Atlanta: Jackson will be a massive upgrade over Michael Turner from last year's Atlanta Falcons backfield. Not only can he tie his shoes without getting out of breath, but he also still runs very hard, even at 30 years old. In standard leagues last year, Turner ran for 800 yards and 10 touchdowns, finishing as the 17th-ranked back. That was better than LeSean McCoy, DeMarco Murray and Darren McFadden. And Turner is terrible. I bring all this up because that Atlanta offense is so good, and this will be the first time Jackson will not face seven or eight defenders in the box. He's going to be incredible in that offense. St. Louis: He leaves St. Louis in a committee situation, but it appears that Daryl Richardson has won that starting job in the Rams' backfield, and he makes for an interesting middle round pick. Reggie Bush Detroit: Bush is still a game-changing talent. He spent the first five seasons of his career in a high-powered, pass-heavy offense in New Orleans. Then he decided to go to Miami to try to become a feature back. After two years, he's now headed to the Motor City, where he'll be in a high-powered, pass-heavy offense. He's perfectly suited to handle draw plays, sweeps and screens in the Detroit offense. And when Matthew Stafford doesn't want to throw to Calvin Johnson in triple coverage, Bush is a talented pass-catcher in his own right. Miami: I actually think his loss is a bigger deal in Miami than most. Lamar Miller might be a decent back, but I wouldn't feel comfortable counting on him for anything more than a RB3 or flex production. And I think Daniel Thomas stinks. Ahmad Bradshaw Indianapolis: Bradshaw still hasn't played in the preseason as he recovers from a foot injury. The Colts know that he's a proven commodity when healthy, so they are focusing on getting him there. New Colts offensive coordinator Pep Hamilton will run the ball more than Bruce Arians did last year, so Bradshaw may provide some solid value in the fifth or sixth round. He is also one of the top pass-blocking backs in the league, so he figures to get significant time in the Indianapolis backfield, regardless. New York Giants: David Wilson is the bigger name in New York, but I actually like Andre Brown more. Though he lacks the big play ability that Wilson clearly has, he is a more physical runner and is much better in pass protection. Brown is a sleeper of mine. Rashard Mendenhall Arizona: Mendenhall will be the lead back for an Arizona offense that should be vastly improved. We've already discussed Carson Palmer, and that should help to open up running lanes for Mendenhall, but given what I know of the offenses Bruce Arians has run in the past, I don't know that he actually gets enough carries to provide any value. And that's assuming he stays healthy. Pittsburgh: Le'Veon Bell will be a solid RB2 in Pittsburgh. Mendenhall will not be missed.[Editor's note: This article was submitted prior to Bell's injury on Monday Night Football.] Danny Woodhead San Diego: Woodhead arrived in sunny San Diego to presumably back up Ryan Mathews. Instead, he may have played himself into a committee in the Chargers' backfield. He'll be a back to target in points per reception leagues when you're adding depth at running back. New England: The Patriots have something with Stevan Ridley, and Shane Vereen can catch balls out of the backfield and even out wide. Brandon Bolden provides added depth. Wes Welker Denver: Welker was one of the bigger free agent departures, going from New England to AFC rival Denver. He'll now catch passes from Peyton Manning, but he'll have plenty of competition for targets. Demaryius Thomas is an emerging star, Eric Decker is a capable No. 2 on the outside, and then there's Welker. Plus, Manning knows the value of a balanced offense, so he'll look to use Ronnie Hillman and Montee Ball. In the end, I think Welker winds up with around 70-80 catches for 750 yards and five touchdowns. I think he's being over-drafted at this point. New England: With Rob Gronkowski being injured, Aaron Hernandez in prison, and Welker in Denver, New England's receiving corps is kind of a mess. The Patriots have a few young guys like Kenbrell Thompkins and Aaron Dobson that they're trying to groom, and they still have Julian Edelman, who is basically a Welker clone, but I don't know that there's anyone that can do it the way Welker did. But they do have ... Danny Amendola New England: Amendola was a talented receiver in St. Louis, becoming a favorite target of Sam Bradford almost overnight. However, Amendola's issue is not talent; it's health. Can he stay on the football field? He's missed 20 games in the past two seasons, and while he's looked great in the preseason, I doubt he'll be on many of my teams due to the injury risk. St. Louis: Amendola was easily the most talented wideout on the Rams roster, but that talent only means something if you can suit up. Between Tavon Austin and Jared Cook, I think the Rams may actually be better off. Mike Wallace Miami: Wallace has blinding speed, but he's a confusing fit for the offense in Miami. The West Coast offense that the Dolphins run emphasizes shorter routes and accurate passes. It might not be the best use of his vertical speed. That said, he'll still catch 60 balls for around 1,000 yards, which certainly has value, but not where he's being drafted. Pittsburgh: The Steelers will really miss Wallace as a vertical threat. With Antonio Brown, Emmanuel Sanders and Markus Wheaton, they have three capable options, but they no longer have that guy taking two guys deep to create space for the others. Greg Jennings Minnesota: Jennings will start for the Vikings. He still has talent, but since he only played in eight games last season, I don't trust him. Then again, it might not matter since his quarterback is Christian Ponder. Is it possible that he's left-handed and doesn't know it? Anyway, the biggest thing Jennings has done lately is complain about Aaron Rodgers. If he was annoyed with a guy many regard as the top quarterback in the league, this might get ugly. Green Bay: The Packers have Randall Cobb, Jordy Nelson and James Jones. Why would they have re-signed Jennings? Anquan Boldin San Francisco: Boldin won the Super Bowl with Baltimore and was promptly traded to San Francisco. He goes to what is now a better offense with a better quarterback. Reports have indicated that both Boldin and Vernon Davis have had great chemistry with Colin Kaepernick. With Michael Crabtree expected to miss significant time, I think both of those guys are worth targeting, especially in points per reception leagues. Baltimore: Baltimore chose to give Joe Flacco a massive contract, and it cost them Boldin, Paul Kruger on defense and a few others. Now Torrey Smith will need to step up, especially with Dennis Pitta out, and Jacoby Jones, who couldn't pass his initial conditioning test expected to start. Smith can be targeted, but leave Jones alone. Donnie Avery Kansas City: Dwayne Bowe will be heavily targeted. But Avery will start opposite him, and will most likely get single coverage. Jon Baldwin has been shipped to San Francisco, leaving no one to challenge Avery for snaps. He won't blow the doors off, but in deeper leagues, he's worth a flier. Indianapolis: The Colts will roll with Reggie Wayne and T.Y. Hilton. Darrius Heyward-Bey is fast, but, unfortunately, he can't catch. Look for Wayne and Hilton to have solid years, although the Colts will probably run a bit more. Zach Sudfeld New England: With Rob Gronkowski expected to miss some time at the start of the season, Sudfeld is a rookie tight end that has stepped up in a big way this preseason. Tom Brady has been outspoken in his praise of Sudfeld, while the media have repeatedly spoken of his tremendous hands. While he's not as fast as the now incarcerated Aaron Hernandez, he seems to have the inside track as New England's "move" tight end. That, combined with Brady's confidence in him, makes him a...