What's Holding the Yankees Back From Teixera?

We've heard so much about the Yankees focusing on the rotation this off-season. However, after looking at numerous polls, it's apparent that the fans feel otherwise. They mostly think that the Yankees should be going after Mark Teixera instead. I mean who can blame them? The guy's a fantastic defensive 1st basemen and a good run-producer! I don't understand why the Yankees don't pursue them. They can easily afford him: They've got about $88 million coming off the books this year. They've spent about 20 on Sabathia and they'll probably spend about $30 more on the rest of their rotation, that leaves about $25 million (you have to subtract other salaries too) to spend on Teixera, more than enough! Not to mention the always fun part: pissing off the Red Sox.