What constitutes "on purpose" is going to be tough to prove here, but if the news from the Carolina - Falcon game was Carolina winning, I don't think we'd have settled to leave Blair Walsh a 48 yard FG to propel us to the playoffs. Walsh had proven he was likely to miss that kick from that range.
I also think there's a historical precedence. Pete's first year he played Charlie Whitehurst in a must win game at the end of the season when it was obvious the Seahawks weren't a bonafide playoff team. Hasselbeck was hurt, but not "can't play hurt". Hasselbeck was visibly pissed off on the sidelines during the game. We won the game anyway, but Hasselbeck was right back in there for the playoffs. Still, to today, I think Pete played Clipboard Jesus in that game to give us the best chance to lose.
For the record. I love Pete Carroll and don't want him replaced as HC at this time.