John Scott has played 9 games for the Coyotes this year.
In those 9 games, the Coyotes are 3-6.
In those 9 games, they've scored 2.9gpg and they've surrendered 3.9gpg. Both numbers are actually above their season averages (2.7gFpg and 3.15gApg).
In those 9 games, the trio of Boedker, Domi, and Duclair (guys I think would benefit from the safety and security of John Scott) have combined for 15pts and -10.
that's 1.67ppg
The trio's season average is 2.03ppg.
Last year, with the Sharks, no player broke 70pts, and no one in the Couture, Pavelski, Thornton, Marleau group saw an increase in stats (Couture and Pavelski stayed about par, Thornton and Marleau had drop offs).
I'm pretty sure I could go through Scott's entire career and find absolutely no correlation between his presence and an uptick in performance.