Your own company? You can do it (2011)
Seriously, go run an Eve Online player corporation. Try setting up a persistent chat server, wiki, etc. for the corp and securing it. Try managing players in fleets from several time zones and scheduling engagements and operations. This is analogous to setting up collaboration infrastructure for remote teams in development settings, as well as scheduling for international workers, wrangling cats, and you will be fully qualified to wrestle Mongolian Tigers. These players are volunteers, which is synonymous with the real meaning of "employee" held by some of the people you may work with. Loosely held by honor, perhaps loyal based on their relationship with the organization, some are hard workers and motivated, others require a leader or mentor be assigned to them. Once your eyes bleed and you wish for death every night for ever deciding to be in charge, try also making it profitable. Use your knowledge of business practices to balance the corp accounts, make good deals, and save money where you can to be able to pay dividends to members of the corp. If you really want to do a "dry run" to test your mettle, that is one way. I'm not saying this will make you CEO of Intel material but you'll at least have the confidence to proceed and have some idea of what the minefield really looks like so you don't jump on every one.