It ain't Kallon who is running out of time. It's GT who is running out of DL players! And that means GT needs the light to come on for Kallon ASAP.
Is it fair? Not really. Dude's from England and only ever played one season of football. So he's a MAJOR project.
Consider this: A guy on my college team (Division III) who was an all-american rush end spent a semester abroad in England. He joined an english semi-pro team (highest level they had) and played tailback, returned kick offs, and generally crushed everyone. He said it was easy because the English had absolutely no idea what they were doing. In the huddle it was like sandlot....you do this, i'll do that, etc. The english have NO IDEA about football.
So not only has Kallon only had 1 year playing but he didn't grow up in America where people watch football fanatically and understand strategy and technique like it's second nature--even if they've never played a down. Seriously. You can take a rugby player with mediocre athletic ability but who grew up in the game and plug them into an american club team and they are instantly and by far the best player on the team. Many US club teams PAY their foreign players because they make that much of difference.
So it's not just lack of experience playing. It is also CULTURE of not growing up in a country with football.
It might not be fair to ask a RS-soph under such conditions to play a major role but GT has no choice. On the bright side with FK knowing he's going to play ready or not he's got to be incredibly focused and working hard. Understanding playing with leverage, using his hands violently, pursuing square to the line, taking on blockers are all completely new to him. There is no blocking in rugby. And in rugby you seldom want to tackle to the ground, you always go for the strip so tackling technique is completely different.
Kallon can be a great football player. IMO it's a really monumental task though. However given his size and athleticism it's worth developing him even if you only get a year or two out of him. Just my $.02.