Just to make it clear how poor England's ODI openers have been over the last three years:
Trescothick - 9 matches, 45.57 ave, SR 87.47
Bopara - 10 matches, 32.30 ave, SR 75.64
Strauss - 24 matches, 31.45 ave, SR 72.76
Bell - 21 matches, 31.05 ave, SR 71.02
Joyce - 13 matches, 31.00 ave, SR 69.48
Cook - 23 matches, 30.52, SR 68.15
Prior - 18 matches, 26.13, SR 76.86
Mustard - 10 matches, 23.30 ave, SR 92.46
This is why even though Bopara has been no more than barely acceptable as an opener so far in his career, England may stick with him in that position purely because everyone else they tried has been even worse (and I didn't even bother to list Luke Wright, Mal Loye or Vaughan either...).