What idioms are used to describe people who only work hard, have no brains and are timid?

Act rashly

[Pronunciation]

[Explanation] Only courage, no stratagem. Refers to doing things or fighting only by pounding and rushing, lacking planning and strategy.

[Source] Zhi "On the Benefits of the Two Rivers and the West of Huai River": (Wang) Wu Jun is a model with courage and no plan. "

Have courage, have the courage to seek a common man, and have the great wisdom and courage of an angry tiger and Feng He.