Jumping to conclusions
As a new leader, or someone growing in your career, be careful not to jump to the smartest thing you just thought of in your head without surveying the landscape.
You may have reached a conclusion in your mind (and you may be right), but doing the work of scouting and getting data to back it up will help a lot to move from “this is bullshit and I can fix it” to “this is bullshit, specifically here (x), here (y), here (z), and barring a better plan, I would fix it by (a), (b), (c).”