Get it done. This is a common instruction and a common compliment. The question is whether it happened, not how.
Whatever it takes. The method is left open. Only the result is fixed.
Let the results speak for themselves. The speaker would rather show the outcome than explain the effort.
Move the needle. Work that does not change the number does not count.
Hit your numbers. This is said of salespeople, managers and whole companies. The target is a figure, and it is either reached or missed.
Work smarter, not harder. Effort alone earns no credit. A better route to the same result earns praise.
An A for effort. This is said when the work was sincere but the result failed. It is a consolation, not a grade.