It's official now: Aaron Sanchez, who pitched mostly in relief for the Toronto Blue Jays last season, is back in the starting rotation and will start Tuesday night's game against the Tampa Bay Rays. He has wanted this for quite a while, if only to quiet the hounding media ("Stop pounding me with questions," he recently told John Lott of Blue Jays Nation).

Between the majors and minors, Sanchez has 58 relief appearances and 34 starts in the past two years. But the fact that only 11 of those starts have come in the big leagues is not the only reason many consider him a reliever first and a starter second. First of all, he has been lights-out as a reliever (0.78 WHIP) and subpar as a starter (1.44 WHIP, 37 walks, 42 K's in 66 innings). But there's more to it than that. Given what we've seen of his stamina, his command and his arsenal, there are legit reasons to think this won't work out.

Then again, if you look at what Sanchez has done recently to address each of these issues, the thought of him being a starter is a lot more conceivable. It's those things that president/CEO Mark Shapiro and his front-office team in Toronto must have heard about when they canvassed 20 people in the organization to get feedback on their decision. So what has Sanchez done that makes him a good fit as a starting pitcher?

Stamina