Some 2013-14 season stats (competitive games only):
Games without Webster: 2
Games with Webster: 5
Average number of goals conceded per game without Webster: 3
Average number of goals conceded per game with Webster: 1.8
Clean sheets in games without Webster: 0
Clean sheets in games with Webster: 2
Number of defeats without Webster: 2
Number of defeats with Webster: 0
Number of wins without Webster: 0
Number of wins with Webster: 3
I just highlighted some stats where Webster was the variable. Longjohnskyblue's earlier post selected Webster as the variable, not me. I did not give any commentary on them. I thought I'd leave it up to others to decide whether the stats supported longjohnskyblues' hypothesis or not.