Done well at one team whilst over spending, Chris done well at quite a few, it's his time to prove can do it at the top level. Not sure Howe has the ambition or skill to get any better than Bournemouth, but we will see.
Why does staying at one club question your ambition or skill? Look at Wenger or Ferguson. I know they were huge clubs, but sometimes improving your own club and taking it to a new level and keeping it there is an achievement not appreciated enough in the football world.
Hughton has only really proven himself with Brighton in my opinion. If he keeps you up next season that will have been his greatest achievement.