I would much rather have a young defensive specialist (Muschamp is my #1 choice also). Bring in a well connected young coach like Muschamp, let him hire a young brilliant coordinator and then forget about the offense. Let Muschamp design the defense, recruit, make personnel decisions, motivate and manage the games. Then if the offense fails, you just hire another coordinator until it works. If it never works, well then that is just our lot in life. If you bring in another "offensive" HC and his offense fails, then you have to go through a whole 'nother hope/impossible situation/5 years of hell before you bring in whole 'nother staff.
Something tells me Muschamp is the kind of guy that is all Defense all the time - and dammit, if his offense isn't scoring points for his boys - time to make a change. That is what we need.
Edited to add: but if we want Muschamp, we need to move quick. He will be in the top 2 or 3 for any opening in the SEC.