Stagecoach MCSL - Chester & Wirral Depots

[M60lad]

RE: Stagecoach Chester & Wirral
Is there a reason why Chester Depot are forever having problems with vehicles breaking down at the moment? I only ask as its virtually a weekly or even daily occurance sometimes at the moment that I'm reading tweets that a certain service on SP1 wont be running due to vehicle breakdown, surely if the vehicles on SP1 are that unreliable then other vehicles should be sourced to operate the route.