we have 10 first team defenders on our books - if we need O'Hara to drop in there's something far far wrong. Lamie, McGinley, Magloire, Nolan are all defenders. Maguire was initially a centre back til he found to be too slow and Foley was also considered to be a defender come midfielder.
We need IMO to stop playing 3 midfielders who all want to sit centrally and defend. Want to see at least 4 through the middle which might mean Polworth but also likes of Temple/Foley/Lawless.