Clemens Back with Yanks

So Roger Clemens is back with the Yankees ... 

As a conservative, I don't begrudge him the money (which is substantial).  But you do have to wonder how many comebacks one player can have?  I mean, at some point, it doesn't work (just ask Michael Jordan).  Heck, even as a coach, it doesn't always work (I'm still hoping Joe Gibbs pulls it off). 

The Yanks didn't have to trade any young players to get Clemens -- and he is known for mentoring young pitchers -- so this could, ironically, be an investment in the future.  We shall see ...