Stagecoach MCSL - Gillmoss Depot

[turbo777]

RE: Stagecoach Merseyside - Gillmoss Depot
I have often wondered why Stagecoach Merseyside have relatively few Double Deckers. Manchester, Preston, Sheffield, Stagecoach have on strength a lot of Deckers but so few in a similar sized city such as Liverpool.
We know of Arriva's dominance, but the cities mentioned above all have significant competition - First in Manchester & Sheffield & Rotala in Preston.
For a company such as Stagecoach I'd imagined an aggressive expansion on Merseyside. From the outside looking in it would appear that Stagecoach are happy with Arriva having their dominant position.
Other than the QBP routes where do Arriva & Stagecoach compete?
Has I'm from St Helens I'd like an alternative to Arriva. Arriva's monopoly in St Helens is bad for the traveller, no competitor to keep them honest.