I haven't heard anything official, but redsox.com recently changed today's starter from Castillo to Alvarez.
Zenny's got an excellent post and made the point before I did: the Orioles, and for that matter, everyone else in the major league, has never seen this kid before, meaning no advanced scouting reports, etc. For the first time in awhile, I agree with a decision made by Red Sox brass...GO ABE!
By the way, here's my thinking on the Sox's near term future: we need to win 4 of the next 5 games. By doing this, we'd gain a minimum of 1 game on the Yanks (as many as 3), build some strong momentum, and give this team a little confidence going into the playoff stretch. If we don't, we will have to question this team's ability to make the playoffs. I've been saying for weeks now that this is the series that will make or break the season...let's see what happens...