Whither the Fifth Starter?

This post is semi-syndicated from The Yankee Analysts.I cannot fathom a scenario in which A.J. Burnett is a Yankee come the spring … a palpable scenario, at least. Over the past two seasons, a total of eighty-six starting pitchers have tossed at least 300 IP. Of those, Burnett ranks 85th in ERA, 84th in FIP, and 69th in xFIP (progress!). The pseudo-heroics of the 2009 World Series are a distant memory at this point in time, and his "electric stuff" and "potential" would be more impressive if he was 25 instead of 35.Why, then, would any other team take him? He has demonstrated the ability to remain durable over the last several seasons, and he can likely be had for pennies on the dollar ... in a market where Chris Capuano and Aaron Harang were signed for two years and eight figures. Additionally, Derek Lowe was moved for a fringe prospect and roughly $5 MM in savings. Carlos Zambrano was moved for a solid back of the rotation type and a bit of salary relief. This,...