There are ways to recover from any loss.
We lost Quinn's 11.5 sacks and Bennett's 4 sacks (in half a season). That's good production. We lost Collins, too, but his 4 sacks in a whole season isn't as tough to replace.
So that's 19.5 sacks we need to make up.
Well, Gerald McCoy was a 5-sack guy last year and it's not unreasonable to ask for that again. So now we're down to 14.5 sacks we need to make up.
Demarcus Lawrence had an off year with only 5 sacks last year. I don't think it's realistic to expect him to bounce back to match his fluky career-high sack totals. But a bounceback season that ups his production without even hitting double-digits seems realistic enough to ask for. So let's say he bounces back with a nice little 9-sack season. Now we're down to 10.5 sacks we need to make up.
Tyrone Crawford gave us 1 sacks in 4 games in an injury-shortened season. Which matches his pace since he's always a guy who is good for 4 or 5 sacks most years. So if we bring him back and he's healthy, he gives us 4 sacks. Or let's say we cut him and spend that money on a guy who gives us 4 sacks. That's an improvement of 3 sacks, so now we're down to 7.5 sacks to make up. And we haven't even talked about Quinn's replacement at DE yet...
The last time Randy Gregory played for us, he gave us 6 sacks. Now, he did that without the full snap count of a starter (Quinn and Lawrence both played 60-ish percent of the snaps last year), and the math says his sack total would've risen to 8 if he was given a starter's workload. But I'll be conservative here and stick with the 6-sack figure instead of asking for 8. So now we're down to needing to make up 1.5 sacks.
At this point, our pass rush is effectively about where it was at in 2019. And there's no end to the number of scenarios where we make up (and hopefully improve on) on the last 1.5 sacks we need to make up.
Maybe Dorance Armstrong makes progress and gives us 4 sacks instead of 2. Maybe Nolan blitzes more and the linebacker unit gives us 5 or 6 sacks instead of the 3 it gave us in 2019. Maybe guys like Hyder and Covington, who each played 16 games and managed only 1 sack each, are replaced with guys who give us 2 sacks each. Maybe Antwan Woods (or whoever his replacement is if he doesn't make the team) gives us 1.5 sacks like he did in 2018 instead of the zero sacks he gave in 2019.
Or maybe the draft falls just right and we add a good pass-rushing DE in the 1st or 2nd round. Or a DT with some pass-rush chops.
Replacing those 19.5 sacks isn't an impossible feat, no matter how daunting it sounds to say we have to replace the production of Quinn and Bennett.