successful meaning winning everything? Just spend enoug money to get the players you need and cross your fingers. Coaching becomes a task of referring the primadonas to be nice.
LA Lakers, NY Rangers, Real Madrid NY Yankees.
Real success is doing more than what is exepected with the resources you have. Look at the imporvement in record fo CofC womens soccer last year versus year before with essentially only one new player.
Look at what Chelsea did in the EPL this past year. Thats success.