When Hill is on the court Hayward averages 22.4/6.5/2.2 on 57.5 TS%. His averages when Hill is off are on 19.7/7.5/4.2 52.4 TS%. He's taking 1.5 shots more when Hill is off but scoring 2.7 points less. Net Rating goes from 23.0 when they're both on to 6.7 when Hayward's on but Hill's off.
When Hayward is on the court Hill averages 24.1/4.4/4.8 on 77.6 TS%. His averages when Hayward is off are on 19.6/2.9/4.0 64.2 TS%. Hill is shooting 15/20 from two and 7/14 from three when Hayward is also on the court. Net Rating goes from 23.0 when they're both on to 6.7 when Hill's on but Hayward's off.
I may have written those stats in a confusing manner, but when they're both on the court, they make each other and the team soo much better.