Why Wait

[Gee]

I think the reason that Joe West didn't call it was because he thought that Marsh saw it and would call it as West didn't have a clue that Marsh was blocked out by the first baseman. Once Marsh gave the safe sign West didn't want to overule him on the spot as there was no immenent need to kill the play at that time.

A-Rod hadn't reached first at the time of the interference therefore all runners are governed by TOP and there is no problem in the reconstruction. So Joe let it play out, and handled it accordingly, good move.