Going by the managers interviews so far there's nothing to suggest McManus is one of those he wants out. We need 4 starting defenders and at least 3 backups. The possibility of dunne and kipre being able to play central and at full back is good for versatility, both for cover and switching from a 4 to a 3. Then considering Mick's age/fitness and the possibility of losing heneghan, another centerback is a must.
Looking at younger players, I could see Thomas and Watt going, mainly due to who we've signed.