2015--allowing the team to rest all the starters after winning the AL east and hence losing home field to KC and subsequently losing the ALCS
-instilling ABSOLUTELY no discipline in the clubhouse-"trying to be everyone's pal" on a team that definitely lacks discipline
getting his job due to nepotism--friendship with J.P. Riccardi the first time and then Anthropoulos the second time--NO winning record anywhere he was before
countless managerial mistakes both on and off the field far too many to even begin to list--including challenging players to fights in the clubhouse etc etc etc