Answer: Limited Partner in a Limited Partnership
Step-by-step explanation:
The best role that Manny can play in business would be to become a limited partner in a limited partnership. Here he could avoid being a General Partner and so will not have to make management decisions which he has no experience in but can just invest and earn returns.
He will also get seat to be able to watch other people manage and learn from them should he choose to and his good network of potential investors and partners can bring even more business for the limited partnership he may decide to join.