Pirri was a bit of a random one. Stielike would work nice as well.So how do those players get the best of Koeman? Those formation looks like lack of creativity though. Maybe as long as one DM can cover CB, like Stielike?
If memory serve right, Koeman is similar to Sammer. Please enlighten me, harms. And people don't like Sammer in back 4. Or maybe he's similar to Hulshoff?
I'd certainly pick Koeman either in a back four a-la PSV or in a Cruyff/LVG-esque diamond with a back 3 turning into a back 4. Using him in a back 5 like Sammer goes against his historical preference even if it feels like an obvious safe choice.
Since I've already done the one with a diamond... + I didn't pick his previous partners like Lerby & Gerets simply because they were his partners although they would've been perfect (although I've picked Gullit).
Basically, give him the set up that doesn't try to take away from his playmaking and allow him the full reign — Netto and Bonhof can peel out wide, Gullit & Rensenbrink can act as targets for his long-passing, Nilis works well as a presence up front... etc.