I just don't see the problem with Hayward as the 6th man like Ginobili.
Ginobili was also an All Star, he performed great in that role and was a massive part of the success of the Spurs.
Hayward has the ball handling, scoring power and experience to lead a unit on the court. Giving him more touches and responsibilities will only increase his process to becoming himself again.
Except Hayward hasn't looked very dynamic with or without the ball. And tbh (and can someone run the stats on this), it seems like we've run more plays through Hayward than either of Jaylen or Jayson. It wouldn't surprise me if Kyrie was #1 and Horford was #2 in terms of touches, and then afterwards would probably be Rozier (lol), and then Hayward, and then Tatum.
Part of me blames Brown's early season struggles on his lack of touches. It's hard to establish rhythm when you don't see the ball much. He developed a good rhythm in the Nuggets game but that sort of evaporated after the 1st quarter.
Usage percentages (Assist ratio and True Shooting %) from NBA.com
Kyrie Irving 25,1 (22,0 - 58,7)
Jayson Tatum 22,0 (13,6 - 52,4)
Marcus Morris 21,3 (7,1
Jaylen Brown 20,0 (9,4
Gordon Hayward 19,3 (16,0 - 48,6)
Al Horford 18,9 (23,3 - 53,2)
Aron Baynes 16,2 (14,3 - 56,5)
Terry Rozier 15,4 (19,6 - 46,6)
Marcus Smart 12,3 (36,0
Apparently Hayward and Horford have been less involved in plays than you thought. It's all quite balanced with Smart having the least touches, despite having the best assist ratio. Irving as the primary playmaker just ranks 37th among starters in the league in USG% (that's very low for an All Star type scorer).
According to the stats Irving, Horford and Smart are the best playmakers on this team. Rozier and Hayward seem decent on the ball, but Hayward has been turnover-prone.
Tatum, Brown and Morris are only good in creating shots for themselves, where the last one has been exceptional at that so far.