Beatty could possibly be a good pass blocker at RT, but that position really requires run-blocking skills as the LDE is usually the defense's best run-stuffer. Beatty doesn't really have those skills as he's a bit undersized to play on the line to begin with, but he would protect Eli in the pocket pretty well.
I think you'd see John Jerry type production out of him at that spot... good against pass rushers, but gets pushed into the backfield on running plays.