Talk Fantasy Football

What has me puzzled by this question is:
Why would an Orc team use linemen ???
4 Blitzers
4 Black Orcs
2 Throwers
4 Goblins
+ (eventually) a Troll
Since LRB-5+ method of calculating Team-Value. Orc linemen arn't cost-effective.
Consider that The TV of an Orc lineman with 6-spp in Block is only 10K less than a 0-spp Orc Blitzer. So the one skill I wouldn't give them is block.
You might consider "Dirty Player".

I believe it is the Linemans AV 9 that makes him more effective than 4 Goblins. Orcs need players on the pitch for as long as possible, so having a Higher AV helps

Orc don't need many lineman. As you said, when your roster is full, you will probably field:
1 Troll
4 BOB
4 Bliters
1 Thrower
1 Lineman / 1 goblin depending on the situation, but most of the time lineman

They are just substitutes infact

having Kick in an Orc Team is necessary, because you can try to one-turn with this.

Kick on the back field, pray for blitz or the opponent doesn't take the ball then throw the gob !

And kick save me lot of matches vs Slow team.