As far as Lebron holding up Bosh, as far as I can tell, Bosh's best situation is clearly in Houston, hands-down.
And Bosh is what's holding up Parsons, who would quickly get resigned in Houston if Bosh joined DH and Harden, and HOU would immediately become a powerhouse, especially with that young PF they have coming off the bench as well.
Bosh, Harden, and DH have all played in the Finals with other teams...interesting if they came together as free agents (or S&T, or T&Extend) in Houston.
The teams that are waiting to sign would otherwise probably start getting involved in the trade market for stars, or sign the sub-stars or older stars like Deng.
SO the TPE couldn't land a big fish because that trade pond is frozen over, yet Danny continues to work by landing another set of assets, 3 of them, in an expiring, a pick, and a prospect. Perfect haul.
Being able to do anything while so much is locked up is a real credit to Danny, especially right after saying that most TPE's expire...haha...