There's no role in the top 6 that requires you to not produce offensively. Kapanen plays a very similar role to Hyman, but is far superior offensively.But on the Marleau-Matthews-Kapanen unit, Kapanen was replacing Nylander's skill role.. Marleau would compare to Hyman but obviously he doesn't bring the same crash and bang hustle.
Kappy is playing Nylander's side, but the whole line's roles have changed. He plays a style that utilizes his speed on the forecheck, much like Marleau, not like Nylander. He's just a player who has the skill to capitalize on the opportunities his linemates provide him, while being able to produce his own chances too. Hyman can't do those things, unfortunately.