> every manager should be able to assign tasks to someone and set the order they must be executed. He needs know what his team is doing and when they finish each task.

That sounds like unnecessary micromanaging. You couldn't possibly have enough detailed knowledge to know the proper order of tasks in all cases. Possibly even most cases.

I agree that communicating the priorities are important, but the boots on the ground have a much better understanding of what they're working with than you do.