One thing you MUST realise, raas767, is that unlike the purchase of TWA by American Airlines, seniority will be a minor issue at Crossair, since Swissair is a company that will simply cease to exist. Unfortunate though it may be, all pre-existing claims to the (rather bogus) notion of seniority will evaporate with the name Swissair.
It is regretable that Crossair has something as ancient and pointless as a seniority list, but that said, the pilots soon to join from the company previously known as Swissair, will join at the bottom.
It won't be a mess at all, I can assure you.
GO SWITZERLAND GO!