Had to be done. Once he lost Yadi last year, the writing was on the wall. Fowler and now the Norris crap is just icing on the cake. Mo definitely deserves some of the blame for this, but I think Matheny was more DeWitt's guy, so the managing blunder is on the owner. The construction of the team is on Mo. The Cardinals aren't making the playoffs barring a huge surprise second half. I'd ride it out with Fowler, Wong, and Ozuna and see if they turn it around before contemplating moving either of them. I would look at the roster, see who holds value around the league, and move a few others out, Norris being my top candidate. You can't have a dude like that screwing up Hicks. Hicks is much more of a weapon than Norris.
After the season is over, it'll be interesting to see if they stick with Schildt or go with Oquendo, Clapp, or an unknown (Girardi, or otherwise). Personally, I want to see Stubby Clapp or Oquendo.