Nobody wants to get told by a bass player. Doesn't matter how right you are, who you are, how skilled/educated you are, what your career level is, or anything like that. Definition of who nobody might be : producer, bandleader, guitarist, woodwinds player, keyboardist, Worship Leader, fathers of the bride, the bride, club owner, bartenders, on and on...
Best advice is to suggest the right stuff and somehow convince the other person it was their idea all along.