I really don't know which SB to exclude, they were all big PSV legends and it's hard to eliminate any of them.
I've choosen Poortvliet because other guys were better and played more for the club. So I'd really like to see Fons instead of him..
You are right about defence structure, additional CB is needed. But I suggest Van Kraay not Koeman, Koeman's peak was in Barca not in Eindhoven.
The problem is who to remove from the first squad
I know you will not agree, but I suggest to leave out Cocu...He spent his best days far from Eindhoven...If not that than put him instead of Van Nistelrooy, there are 5 CF in the first team, that's too much since they were all same type of player, classic box strikers..