Why must fair athletes be suspended together with cheaters?

Anti-doping agencies do no not make fair decisions in some cases. While several athletes break anti-doping rules, the whole teams receive suspensions. So, individuals that do not lie are suspended together with cheaters. Don’t you find it unfair? Why must good sportspersons be kept from realizing of their hopes and dreams, if other individuals cheat?
The Waterloo football program was shut down for a year. It was a result of an investigation. Everything started from a bust of a player that was caught having many vials of anabolic steroids and HGH. It led to numerous investigations conducted in Canadian colleges. The investigations were led by the Canadian Centre for Ethics in Sport.
An investigation resulted in eight positives of the Waterloo football players. It led to decision to suspend the whole team for a year.
Unluckily, fair players of the Waterloo College were suspended together with liars who utilized prohibited performance-enhancing preparations. The football players Matt Vonk and Steve Ples played at Laurier before the steroid scandal and the suspension. They dind’t violate anti-doping rules. That’s why The football players Matt Vonk and Steve Ples hadn’t receive the suspension.
These two players decided to transfer to another college to realize their dreams related to football. But these two football players received refusal. So, these innocent football players will be kept from playing football the whole year.