Not really. My lvl 10 PR guy is performing no better than the lvl 7 he replaced.Maxed out merchandise sales at $32,000, not selling out my arena despite being unbeaten in competitive games (but my prices are a bit silly).
I don't know where I get this from, but it's in the back of my head (so I'm telling this as a gameplayer, and not as a all-knowing GM!!) that a level 10 staff isn't realy THAT much better then a level 9, but he does charge a lot more money.
Guessing $32K may be a D.II cap? Last Week's Merchandise Revenue: $ 41 612