I think you are right. Theo said something interesting before the game. I am paraphrasing, but he said that Tito would have to balance closing out a win with using Foulke. He said each win is important. This was only a 1 run game, with no margin for error. Foulke has not been good in Texas and he is coming off a bad outing. If there had been a three or four run lead, Foulke would have closed. Francona probably has had a conversation with Foulke about how he would use him. For now, he won't close out one-run games. They'll let him get his legs under him with 3+ run games. They will give him an opportunity to right himself, but not at the expense of a win.