The 2015 NFL offseason has been incredibly active with both a lot of free-agent movement and some trades involving big-name players -- much more so than in previous years.
Let's forget for a moment the cost of each deal and the overall roster-building blueprint of every team. (For a look at some of those factors, check out Mike Sando's free-agency grades.) We're concerned here with a more immediate question: Which of these players changing uniforms are set up to make the biggest impact in their first seasons with their new teams? Here are the top 10, ranked in order of expected immediate impact.
(Note: If Adrian Peterson were to switch teams, he would rival our No. 1 for having the most impact. No matter where Peterson plays in 2015, I fully expect him to have a very productive season.)