This is what happens to over-performing teams in August. The dog days set in and the men separate from the boys when the going gets tough. This Red Sox team had outperformed everyone's expectations, so this bump should have been expected. To the credit of the FO, they saw the opportunity to make a big post season run and they reinforced the team with a pretty good starting pitcher. They did not stand pat and try to make do with what they had. I would have liked to add a RH to protect Ortiz, because the lineup around him is not very good at all.
The team has blown a tire. If Buchholz comes back by September 1st, they can fix it and back in the fast lane. If not, or if he just doesn't have it when he comes back, the wheels could fall off this bus.