Posted this in the other thread but I guess it's more in line with this particular thread's topic:
I don't know that it's ultimately all that important to have an expensive veteran backup behind Tua.
#1
Tua didn't finish the '19 season in college due to the hip injury. In fact, he was banged up and immobile in '18 prior when he got pulled from the Georgia game unable to even walk off under his own power. He really didn't finish either season in college in anything like a healthy state if you're being honest about it.
As a pro, he obviously didn't finish the '22 season given the concussions and this year he didn't finish the season either when the Playoffs were literally on the line and we were facing beat-able opponents!
The likelihood that Tua gets hurt next year is high (as always) but he's really only finished a season heathy like...2-3x depending on what your definition of healthy is. So if Tua misses time next year, it's better to just abandon all hope rather than pray for some contingency.
I know it sucks but you basically just have to pray that Tua starts 15+ games or else you're just dead in the water.
#2
If Tua does get hurt again in '25 then he needs to be replaced pretty much immediately in which case I don't think we'll be coming off a big Playoff run or anything. If that's seriously the case that he misses time again in '25 then you really shouldn't be worried about backup QBs at that point because the room is going to get entirely turned over.
You can add a veteran backup QB but (a) it might be expensive, (b) it doesn't really guarantee wins and (c) it won't really matter when you have to replace the starter anyway.
#3
If your starting QB is out, winning is probably more a function of who your opponent is than who your backup QB is. Sure, some guys give you no chance whatsoever, but in Tua's absence over the last few years Miami has managed to beat the Patriots, Jets and Browns. Your best chance of winning is simply to face a bad opponent.
If you start a back-up QB against someone good like the Chiefs or BIlls, it's over before it gets started.