Doesn't necessarily need to be full time, just be available for camps and also to share with an assistant locally to implement his their system. At least Snyder was implementing a lot of euro sets in the NBA which worked, and obviously Herbert has the European experience as well.
Advantage for Snyder is majority of team is in NBA so can catch up regularly, advantage for Herbert is that international experience, reverse is the downside for both applicants.
The new coach will need to think outside the box to succeed, can't rely on Patty too much surely, Giddey is more a distributor than a pure scorer, so need to find out who's going to be that scorer when the team simply needs to put the ball in someone's hand and clear out. Defensively things look very good, just lacking someone that can drop a random 30 piece, unless Patty still has the fountain of youth. Would be looking for Harvey to be a candidate ASAP as that wildcard.
Would be happy with either of those two, need someone fresh and not go down a Caporn etc path. Not sure about Dellys ambitions, but would be good to have him on sidelines as well. He'd be good to have locally with Vickerman and knows the NBA system so would be a good conduit to Snyder.