Knight is quality enough at backup T for years to come. He should only improve. And there's Steele, and Hyatt, and some other guy to develop too. They obviously like Steele, and won't be giving up on him.
But if Martin is similarly a stud at T, I could see them thinking about moving on from Tyron if he still seems to have nagging issues in 2021. Martin and Collins at T.
I'm not as concerned about Collins' health going forward. He's not over the hill, though at 28 next year, he's nearing the crest.
Really too bad about the oline. More players whose primes were wasted by Jerry, while Frederick's was just cut short in his prime by a weird disease.
Going into this year, the oline looked like a true monster for the ages, with Tyron, Williams/McGovern, Frederick, Martin, Collins. 3 guys vying for more All Pro years, one for his first Pro Bowl, and two quality draft picks fighting for the final slot. An oline that could compete with the olines of the 90s. And Williams play this year would have been as a respectable starter on that oline. McGovern too. But instead of being a respectable 5th best on a historic oline, they're 2 and 3 on this year's oline.