Sark can still grow, every coach can. DeBoer screwed up his clock management in the Sugar Bowl and got very lucky to squeak out with a win considering how they outplayed us. He would have been dragged hard if they ended up losing that game.
But Sark is probably a legit top 5 coach right now when you consider the full gamut of coaching responsibilities: 1) talent acquisition and roster management, 2) assistant coaching hires, 3) off the field CEO stuff w/ the AD and boosters, 4) in-game coaching, 5) player development, etc etc.
I'd put Kirby ahead on #1, even on 2, 3, 4 and 5.
I'd put Harbaugh ahead on #4 and 5, behind on #1 and #3, not sure on #2
I'd put DeBoer ahead on #2, 4 and 5, behind on #1 and not sure on #3
That's who I'd put above Sark but after Kirby it's close.
Below Sark...
Lanning is maybe ahead on #3, slightly behind on #1 although he's done well in the portal, slightly behind on #2, slightly behind on #4 and unsure on #5 although Nix was developed he was also 8th year, so...
Day is slightly ahead on #1 (ranks ahead of Texas in 2023 team talent composite)
Riley is slightly behind on #1 and 3, and way behind on #2 and #5