Gray is very similar to Penney, in terms of personality. Both hard men in the centre of midfield, and both won't take no :censored:. Andy Collett is a very good coach. We signed David Stockdale on a free, from a building site, and he was gash. Two years later we've sold him for £600,000! Granted, Stockdale will have improved himself, but AC played a huge part in his development.
Penney's teams are generally built from the back, and will normally have at least one "hardman" in the centre of midfield, ala Ravenhill/Kennedy. Neither play pretty football, but they do the job that Penney asks.