There were several times where he tried to make suggestions to Janeway but she usually shut him down.
I think that part of that was since Janeway was a woman there would be a tricky area of he always was like well I think you should do this. Janeway needed to be shown as a strong woman who didn't need a man giving her suggestions all the time.
his maquis experience might actually be a hinderance to Janeway durring battles. Maquis do things very differently than Starfleet