I would love to see him with a coach that isn’t Dallas Eakins or Greg Cronin.
Eakins had Mac for his rookie season, D+2. Developed Mac from 2LW to 1C all within a year. Mac had to earn his way to 1C from 4C and a 6:32 game, iirc. He was also more disciplined and didn't cheat much offensively. And Mac was better utilized on the PP with his big shot to where he had 7 PP goals under Eakins. Mac scored 43 points in 80 NHL games for his rookie season, a 0.54 ppg rate.
Just for reference of developing forwards offensively, we can use Z as a good example.
Z
D+2, Eakins: 24 games, 3g + 10a = 13 pts (0.54 ppg) (part-time winger and part-time center)
D+3, Eakins: 75 games, 23g + 38a = 61 pts (0.81 ppg) (rookie season)
D+4, Eakins: 81 games, 23g + 42a = 65 pts (0.80 ppg)
D+5, Cronin: 31 games, 6g + 9a = 15 pts (0.48 ppg)
D+6, Cronin: 24 games, 4g + 6a = 10 pts (0.41 ppg) <--- Current season.
Hell, Eakins helped Terry become a legit scoring, top-line winger and Fowler break career highs in scoring twice. I would love to see Mac develop his offense under Eakins, tbh.
Speaking of Eakins, he has his DEL club, Adler Mannheim in 4th place with a record of 13-2-2-7 (45 pts). Eakins is Mannheim's GM and coach. Eakins took over GM and coaching duties halfway through last season to help Mannheim get into the playoffs as a 7th seed. He's in a 3-year extension with Adler-Mannheim.
I just want a coach who's good with developing offense for our forwards. Cronin is not the man.