As fantasy baseball managers approach Week 11, the waiver wire presents a valuable opportunity to bolster your roster with under-the-radar hitters poised to make an impact.Jake Burger has been on a tear, delivering power and run production for the Rangers. Zach McKinstry offers a rare combination of speed and positional flexibility with the Tigers. Trevor Story is showing signs of resurgence after overcoming injury setbacks with the Red Sox. Alejandro Kirk is seizing a more prominent role behind...