Answer;
Work addiction.
Distrust among team members.
High attrition rates.
Explanation:
Work addiction is good but working every time is overburdening yourself, that's what William is doing. If he continues the same routine there are indications that he will not put the right amount of energy in the right path.
Team would be disappointed with him, they won't support much at the later stage and may think of not to join William's team, as he is not considering his team while making his decisions.
There will be surely some harmful effects on his physical and as well as mental health, as he would be rejected by his peers.
