or cash out before they get too old while they are at their peak.
Honestly, that kind of player isn't all that useful to a NT. They have a big enough roster (and for free!) that they can have a master of each individual trade, they don't need a jack of all trades. If they're playing outside, they probably have a SG with 10 ID that they can play, and if they're playing inside, they probably have a PF with 11 OD. While you as a club team would have no way to keep both of those guys around for situational play, a NT can do that easily.