Long the dean of left tackles during his prime, including an All-Pro campaign in 2013, Peters is 34 and set to hit the downside of his career. The question is, has the slide already started with a poor performance the last season and a half? Certainly nagging injuries robbed Peters of his patented quick feet, and he probably wasn’t a good fit for Chip Kelly’s scheme, not to mention his sub-par surrounding cast. But don’t underestimate Peters. He’s still capable of being higher on this list if his legs don’t let him down.