We are all too quick to do Britain down about various things but in my mind moving airbridges around moving aircraft is just asking for trouble and the 'rush' to get the bridge on might just, one day, bite someone on the arse. Various gates are more difficult for positioning airbridges than others but generally speaking the time it takes to position makes very little difference.
I know Easyjet are red hot on OTP management these days which is why performance in this area has ended up being the best it ever has been in the history of the airline. Not least because Summer 2010 was a disaster in certain parts of the network. I can tell you that performance of handling agents is scrutinised on a daily basis at base level. To assist in this delays are documented, reasons why and with that comes a whole list of 'delay codes' which refers to specific reasons. Obviously when specific trends become apparant, positive action can be taken.