It isn't a waste. The gutter do it better than the thrower, thanks to his AG 4 for dodging a fleeing matters... that cannot be compared with the pass ability of the Throwerfen wrote: And that's the biggest reason a Thrower is better, you don't want to waste one of the best players on your team with ball cuddling duties. Gutter Runners should be out there providing mobile assists, threatening to score and Dauntless Blitzing people off the pitch.
Ball cuddling duties aren't a secondary and less important part in the match... it's pheraps one of the most important things out there, and the gutter do it better