From which small beginning they self evidently SET UP A LARGE BASE.
Well, yes. Thankfully so. But what is your point? I haven't disputed this in any way.
If MAN transatlantic was a low hanging fruit, why haven't MAG made a deal with Norse?
There is an issue of scale. Thomas Cook had a based fleet of up to seven A330's plying the Atlantic each day from MAN. The entire Norse fleet of B789's is only ten strong, and these are spoken for by the existing route network. However, MAN clearly is 'on the radar' from Norse's perspective, as they applied for sufficient slots to operate a daily service in the recent past. Of course, internal challenges within the airline may influence outcomes first.