Sentence 1: in fact i think they're getting a different guy for a backup quarterback i haven't uh i haven't kept up with it lately but i remember reading something a few months ago about them signing somebody else on or or trying to go after somebody or trade for somebody but it wasn't anybody i'd really heard of but i heard on the radio this morning or yesterday morning that uh Aikman's back in practicing doing real real well um who is it Michael Irvin

Sentence 2: I think they have already signed a great player for backup quarterback.
Is this second sentence entailed by the first sentence?
it is not possible to tell