referee-is the referee
umpire- the umpire
crew chief- crew chief
They are like the main official like in soccer he's one of three he's the one that stands on the court while the others stand off the court.
College basketball games generally have three officials. They is officially one referee and two umpires and the lead referee is referred to as the crew chief.
Depending on the call all umpires can reverse a call but the crew chief supersedes all umpire ...Clarification:The chief umpire for the game, aka. plate umpire makes the final decision on a call when another umpire ask for help. If the umpire does not ask for help no other umpire should interfere with the call. The home plate umpire is the chief umpire, unless the league appoints an umpire as the chief umpire -- MLB appoints a crew chief for every umpire crew, all calls where umpires ask for help will come down to his final judgement. You can find all of this in 9.02 and 9.04 of the rules
Officials are usually referred to as referees, however generally there is one lead referee and one or two umpires, depending on whether there is a two or three person crew. In the NBA, the lead official is called the crew chief and the other two officials are "referees
A crew chief doesn't make nearly as much money as a driver. They make around 40,000 dollars a year being a crew chief.
That will all depend on the type of crew chief and the industry it is in.
In 2011, Alan Gustafson will be Jeff Gordon's crew chief.
Bob Osborne is the crew chief for Nascar driver Carl Edwards.
Brian Burns is the crew chief for NASCAR driver A.J. Allmendinger.
Robbie Loomis was Jeff Gordon's crew chief in 2001.
Clearly the F15 crew chief is stronger. The F16 crew chief only needs to fix one of everything, making them less effective in the real world. This is why shreds were dropped. 16 crew chiefs wanted to go to real aircraft
In 2010, Lance McGrew was Dale Jr's crew chief.