I didn't see Posey play at all for New Orleans. If he truly is washed up, then of course Danny won't go get him. But if he was hurt, or just hated being there, he is the type of player we could use. During his last stint, he proved he can defend elite NBA scorers, if he can still do this, we should take advantage of the fact that New Orleans is really trying to shed money. If Danny thinks Posey can guard Lebron and Kobe, he should go get him. I'm sure New Orleans would be willing to throw in some picks or players in addition to posey for us taking that contract. Maybe something like Posey and Julian Wright for Rasheed? Again, all of this is contingent upon Danny believing Posey can still guard Lebron and Kobe.
And I think this team was really missing Ubuntu. They should bring it back, and Posey could be the perfect person to start that.