i disagree.if some players don't need or can't cope with double training sessions that's understandable and down to the staff to assess who these players are.spurs do double training sessions and they have finished second in the prem.
Bobby wasn't a defensive midfielder, but he had to play there to cover the feckless Lee and slower-than-treacle Blizzard. He did an OK job there but it was a square peg in a round hole.