I have to defend the running of the 21 here.
Your flagship route, carries the most passengers, barely copes in full service - it's surely a no brainer to run this?
The 67 can provide connections to the QE from along the route and places the 51/52 etc serve. It's not idea but its better than nothing
RE: Go North East - 2023 Pay Deal and Industrial Action
Wistfully stuck in the 90s