Here's my jump the shark moment.... Have it discovered that Bobby had a twin brother and he use to also be a firefighter but isn't the leader that Bobby was and just a grunt. It make for weird moments seeing Bobby 2.0 not being a captain but just one of the guys. Or you bring Strand from the Austin series.

This is why they should have discussed this with the other 911 show and moved Strand in this position. Bring cameos, or a relocation or two since LA and Texas isn't a stretch and you have consistent characters the viewers want to keep seeing.