The improvement in 12 personnel passes has been huge. Haley was using 12 to dial up deep shots. Look at the depth of target & sack differences:

w Haley:
13.6 yd depth of target, 5 sacks, 4.3 YPA, 30% success,

w Kitchens
8.2 yd depth of target, 0 sacks, 7.0 YPA, 65% success

— Warren Sharp (@SharpFootball) December 27, 2018