If the CB you're referring to is Jansson, then Monk bought him to Leeds like and deserves the credit for that.
Wood "the top goal scorer" only scored 13 goals the season before Monk came in (which is also his previous highest scoring season, his next is 4 goals). Maybe, just maybe, Wood's number of goals last season had something to do with the coaching and tactical approach from Monk.
Leeds were a complete mess before Monk went in, of course he deserves great credit for transforming them into a promotion chasing side.