What the hell are they thinking?

Why do the Twins insist on punishing their top prospects, like Matt Garza (pictured)?
Liriano missed a start with a sore elbow.
Brad Radke is trying his damndest to pitch through a sore shoulder.
And although Garza has dominated every level of the minors so far, most recently Triple-A, the Twins have called up, just in the last week, Scott Baker, Boof Bonser, and now some dude named Mike Smith.
I pay pretty close attention to the Twins farm clubs, and I've never heard of Mike Smith.
Why must the best prospects wait in line? Shouldn't winning take priority over seniority?
After whipping the Rangers 15-2 behind an encouraging start from Carlos Silva on Monday, the Twins had two more important home games before hitting the road. Having lost two of three to Detroit, they had to at least win the series, and a sweep would've been best.
So the Twins send Baker and Bonser out against Texas powerful lineup.
Baker and Boof have both had their moments, but nobody, least of all Terry Ryan, should've been surprised that they both got lit up by the Rangers.
I hope Terry proved his point.
Whatever the fuck it was.