re: What about Loston playing linebacker and let him rush th qb.

Considering Chavis' predilection to convert dbs into linebackers, it should be safe to say that if he hasn't done it yet, he didn't think it was a good idea to move Loston... at least not as good an idea as keeping him at safety.

You can ascribe the "why" in numerous ways...
- maybe didn't think Loston would be a good LB.
- maybe he thought Loston would be a better safety.
- maybe he thought we were thin at safety and would rather keep Loston there for depth. (I say depth even though he's the starter, because moving him would obviously press someone else into service at his spot, at which time the question would become who backs up that person.)