I like Melo to be honest. I think he is a good player and while he can be nuts at times he always fought for us when he played for us. Also I like how he does not trash Juventus in the media like a lot of ex players who are not wanted by their clubs have done in the past (like Giovinco when he was loaned out). I think Melo is a good enough player to play for many big clubs especially when you consider players like Barry, Carrick and Obi Mikel get lots of playing time on big teams as CM. If we do end up selling a CM I would be 100% for not buying a replacement and just extending Melo's deal on reduced wages.
If for example we sold Marchisio to get Jovetic and Higuain then I would want to keep Melo as a back up for Pogba and Vidal. Thank god we have so many good CM... we are pretty stacked with Vidal, Marchisio, Pirlo, Pogba, Asamoah and Melo at the club. I love Marchisio but it might make sense to sacrifice a top mid to get a top forward as it would have little impact on the midfield but would be a huge improvement in attack.