But when you do look at top teams?
They might not be "top 6" players on the 4th line... but they have offensive talent and are really 3rd line level guys playing 4th line.
I mean:
Carrier-Roy-Kolesar
is three guys who combined for NINETY-FIVE points per 82 games between them! (albeit Roy was 3C/4C over the year)
Roy is a good 3C who... ah... started career on 4th line at age 22!
Carrier is a good 3LW who... ah... started career on 4th line at age 23!
Kolesar is a good 4th liner who would play 3rd line on some teams... ah... started career on 4th line at age 23!
And all three were guys who were P/GP players in junior hockey who played top six in the AHL.
Annnnd Roy DOES play 15+ minutes a night. And Carrier easily would on a lot of teams.
Carrier was up and down until he was 25, physical forward who fits the bottom six "energy" prototype.
Kolesar is another physical guy who started on the 4th line halfway through his 23 year old season, then moved up to the third line
Roy didn't start until he was 23, on the third line, second line minutes the last two years.
Notice they all marinated in the AHL.
Roy 2 full seasons, 27 PO games, called up in his 3rd AHL season,
Kolaser 151 AHL games, 24 PO games, Kolesar 127 AHL games
Which proves my point, the young guys who start on the 4th line should be energy types, who can then use that to earn their way up the lineup.
Less physical/defensively responsible forwards are better served in the AHL, honing their offensive skills so they can make an immediate impact.
Desnoyers is a good example of a player (if he's strong enough, that's what will hold him back this season) to start in a 4th line role, play on the PK and learn on the job.
Lycksell is probably better served returning to LHV on the first line there if he can't break into the top 9.
Wisdom is also a 4th line type, but he probably needs another season in the AHL.
Avon could also fill a 4th line role effectively but needs time in the AHL.