I think having someone of Henrik's stature might have a positive outcome with the crowds.
Read today that he went from 16/1 to 3/1. He is my second choice behind Paul Hartley.
Good Points -
Massive player, who could get people through the turnstyles.
Could potentially help the club hoover-up Celtic-leaning Highland fans, who (if they like what they see) could change allegiance to ICT.
Supposedly plays an entertaining, attacking style of football in a 4-3-3 formation.
Name would attract players.
Could potentially keep players at the club (a la Butcher). He wouldn't be an unknown to them (like Barry Wilson or somebody would).
Probably loads of contacts throughout the world.
Potentially more coverage of ICT abroad.
Negative Points -
Could potentially move on very quickly should a big team come in for him.
Doesn't have the best of records as a manager in his own right, and supposedly did rather poorly considering the size of the club.
Are we looking at him just because of his name?
Overall, there's some very good things that someone like Larsson (or someone of that ilk) could bring to the club. If he needs anything, he'd need an experienced assistant, Jimmy Nicholl or someone like that. I'd certainly back him if he got it.
I think someone like John Hartson would be a good assistant for Henrik. John Hartson would be more up to date with the happenings with Scottish Football than Larsson would.