Jacksonville will certainly look into Martz, but his offensive system needs to be established from the ground up, and that brings up the dreaded r-word: rebuild. You need to give him time to get players who fit his system. It will take a year, probably two.
We've seen Martz go to other teams as a coordinator and flop- you can't just have him fill in and half-ass the offense. Give him time to get it right, or you just waste everyones time.