Knicks probably could not control where Kyrie and KD were going to sign.
However, I do not understand some of the other signings. i liked the Randle signing. Maybe Bullock and Portis could also help. The big issues i had were the redundancy in signing Gibson and Ellington. Seems the Knicks would need more help @ C and PG. Also, if they had to sign Gibson and ellington, why a two year deal for those oldsters. should have been one year and a team option, not like anybody else was banging down their doors. The 2 year deals removes a lot of roster flexability.
As for the Nets, I think their kudos are over-rated. Kyrie is a mega-talent, but if he could not make the celtics better why does anybody think he will be terrific for the Nets, especially at the cost of russell who really blossomed there. KD will probably come back as a very good player, but very unlikely to be what he was. Getting those two to sign below max to get jordan was an underrated move.
All in all, I would give the Knicks a C- and the Nets a B. I have a feeling these moves will not end up with a championship in Brooklyn and that a couple of years down the road one or both of those near max deals will end up being a big albatross for the Nets.
EDIT - Knicks just signed Payton @ PG. I think this is an excellent signing, especially for the $$$ and i raise their grade to C.