What is this fascination with Locos and scheduled flights?They add very little value to the airport in terms of purchasing. Teesside was at it's best when it was heavily involved in holiday charters and that is the only way for a small regional airport to go. Passengers tend to use the carpark for 7/14 days and tend to spend a lot more whilst at the airport.
I do think you have joined the so called management who appear to want to recruit flibbertygibbet airlines rather than concentrate on their core business.