Monroe doesn't suck at all, if this draft didnt have a prospect like Demarcus Cousins and/or Derrick Favors raw athletic ability I think people would have no problem with Monroe. He's a great passing big man with a soft touch and he definitely might have it in him to play in the post.
It's just with drafting a guy like Reke last year, even if fans were mad at first about Rubio(myself included) he proved to change the teams direction, signalling a new tough bruising take no crap team we are building. Then we drafted Casspi and Brockness and as the season progressed these young guys showed a crazy ammount of heart and determination to win games, something we haven't seen around this team in awhile. Then we picked up Carl Landry a real tough guy who tries his damndest to get work done downlow DESPITE his lack of size to be a dominat force at his position. We are bringing in guys that will do the neccessary work to have success in the NBA, guys who don't mind scrapping for loose balls and are mentally tough.
I haven't seen alot of DMC or Favors, but I saw TOO much of Monroe in college. He isn't mentally tough out there on the court and he never shown signs of being comfortable being that guy out there on the court. I watched him in the NCAA tourney game against Ohio, (a team his team shoulda stomped out mind you) as he sat in the high post passively letting stuff get outta hand.
Now that was probably the offense they ran that made him not go down low and beast but the fact still remains that if he was any sort of winner he would of played that game to win instead of getting embarrassed.