Unpopular opinion here, but I truly believe that Hayward has been better than Brown this season. At the very least, he contibutes to team success more than Brown does.
Both Hayward and Brown are efficient scorers. Hayward is a better passer. Brown is a better defender. Imo, we need Hayward's passing more than we need Brown's defense. The only player on the roster with pass-first mentality might be Smart. Kemba is a willing passer, but he's a score-first PG. Wanamaker averages good assists numbers, only because he plays within his limitations. He ain't a pass-first guard. The C's are 25th in the league in assists per game. We desperately need Hayward's passing. He keeps everyone involved on offense, hence he keeps everyone happy.
Basketball is a team game. Replace Hayward with a score-first wing and the C's will become a dysfunctional team, like we were last season. This is the #1 reason I don't want us to trade Hayward.