Sure it sounds like a good idea but then you have to face Rolen, Edmonds, and Renteria, with the bases loaded. Imagine if they put Pujols on and then the next 3 guys did some serious damage. People would be saying "how can you load the bases with thsoe guys coming up?!?!".
Hindsight is 20/20. Pitching around Pujols, but not intentionally walking him, is a good plan IMO. But apparently whatever they did didn't work.
"Jack, will you call me, if you're able?"
"I've got your phone number written, in the back of my Bible."