Oh yes they do... You can get their 2022, 23, 25, 27, 29 picks unprotected on draft night after they make the 22 pick. They also own Dallas pick in 23 (not that great). You can also work in some pick swaps. There are a couple interesting young guys like Toppin and Quickley (they aren't huge prospects but interesting). Its how Boston got Tatum and Brown. They aren't great picks unless they are unprotected... which is why I think you could get something like that done.
Those type of deals are great because you don't have to bank on your own *****yness to get talent. You can use some of your own picks early but have those picks to help fill in with trades or to give you a shot at lottery talent without being a lottery team.
I might also leak the negotiations a bit since CAA runs the Knicks and is Donovan's agency. If they aren't willing to give up a lot it might cause a little divide between Donovan and his agency that could be kinda fun. They can have him now instead of waiting for FA but aren't willing to give up some worthless picks... do they really even like you?