He was a senior salesperson, but not a manager or director. I doubt that he had access to anything more commercially sensitive than access to client lists etc., which I am assured he did not 'acquire'. There was no explicit extra salary or other amount paid for the restriction. His view, which on balance I think is fair, is that the two companies are not competitive - except that both are 'consulting' companies. However the type of work and expertise is very different and we have never been in a competitive situation with that company (ever).
Thanks Alex, I agree - and also obviously understand your caveat.