If Nash leaves (and he almost certainly will) we'll be a 20-30 win team for the next 2-3 years, Eric Gordon or not, and perennial contenders for the # 1 pick in the draft. Best case scenario, we'll pick wisely in the drafts, and within 4-5 years we'll have a young, talented group of players. Gordon's contract will either be expiring or it will have expired by that time.
We gotta pay somebody in the meantime, and if the Hornets match, that only hurts them. If Nash stays (again, unlikely) we suddenly have a solid 2-guard to pair up in the backcourt with him. Maybe that nets us a shot at the 6th-8th seeds in the West for the next year or two.