No!1. PR guy will slightly increase both your merchandise and arena revenues. It can be good to have a high level PR guy if you lose most of your games.2. If you take a home PR guy, the fans will cheer louder for you when you play at home and it will improve your home court advantage. If you hire a road PR guy, your opponent HCA will be reduced. No speciality PR guy, no effect.
The pr guy is the one who will encourage the fans to come see the match even if you have a loss streak..with speciality crowd involvement more people are coming..I mean slightly above normal..and with national appeal when you play on the road your opponents will have a small disadvantage due to the "name" of your team..