It's not a wise decision to trade for Greg Monroe. Monroe, like Rondo, will be a free agent this offseason. Since he's playing on a qualifying offer, we won't get his bird rights by trading for him. The worst case scenario of the trade is not only we lose Rondo, Monroe also walks away to another team in the summer. It's a lot more sensible to wait for summer and sign him as a free agent.
If Rondo 'has' to be traded, the hypothetical return will be a young promising player, who will commit long term in Boston, plus a pick or two. Doubt any team would do that as Rondo can easily leave through FA.
But what promising player are you going to get, that will also stay long term if not Monroe? There aren't many options out there, and trading for picks are getting harder and harder to do. I mean we could trade with the Lakers and get nothing. Or we could make a move for Monroe, and keep Green on to sway him into signing. Getting the players to come is the hardest part, getting them to want to stay seems to be easy. I mean Humps wanted to stay on a rebuilding team after not being to happy about the trade at first.
Yeah Monroe could walk, but so could Rondo and we would still end up with nothing, but at least DA would be rolling the dice and trying to do something to get this team moving forward. And Rondo could walk from Detroit, but so can Monroe, so both teams are in the same boat. But both teams have players they are friends with that could get them to stay.
In a league that is PG heavy, and most teams have a good to above average PG on their team, it makes it hard to move Rondo, and you wont get complete value for him because of that, and we would have to over pay to get some one like Monroe.