Leon Best probably comes second in the recent prize for Albion player with the worst attitude - though for me Kemy Agustien comes a clear first.
The worst player in recent years was surely Billy Paynter. Following his disastrous loan to Albion, he was dropped by Warnock when he was at Leeds,' taken on a free by Doncaster and did ok for about a year. Went on loan to Sheffield Utd and kept on the bench by Clough. Let go from Doncaster in 2014 by Dickov. Went to Carlisle where he failed again. Now at Hartlepool where he seemed to do ok last season but isn't doing much this year. Personally I can't believe that 'barn door' is still playing football anywhere in the league!