Greg Jennings' original plan called for him to begin running at full speed three weeks after surgery. Jennings went under the knife on Nov. 1. He says he's already pain-free and ready, but admitted he doesn't see "eye to eye" with his doctor on a return date. With aggravation a concern and Randall Cobb/James Jones playing at a high level, the Packers will likely exercise extreme caution. A limited return in Week 13 appears reasonable.