Why won't 2010 mini won't start after fuel filter was replaced?

What is your question?

My husband recently changed high pressure pump,low pressure pump and fuel filter on my mini. After he replaced fuel filter car would turn over but would not start. He checked all fuses and looks like all are good. What else could cause it not to start. Does look like we are not getting enough fuel. Could it be a wire or filter housing he broke when changing the filter. We are stumped. Why does it not start? Thanks. Hannah

What makes this problem better or worse?

Nothing

How long has your 2010 Mini Cooper had this problem?

A couple of weeks