call (all) the shots
To dictate how a situation or agenda proceeds, as from a position of authority. My staff has to do what I say because I'm the boss, and I call all the shots here! Mom calls the shots for Thanksgiving dinner, so you better get her approval for any dish you want to bring.
call the tune
To dictate how a situation or agenda proceeds, as from a position of authority. The phrase is a shortened version of "Who pays the piper calls the tune," which means that the person who pays for something assumes control over it. My staff has to do what I say because I'm the boss, and I call the tune here! Mom calls the tune for Thanksgiving dinner, so you better get her approval for any dish you want to bring.