Context: Riku is a young boxer in Baba's gym. Yanagi, an older boxer, used to be in Baba's gym too in the past, but he moved to another gym because he was not satisfied with Baba's methods. The two, Riku and Yanagi, are now talking about Baba.
First of all, I am not sure about the meaning of 一つや二つじゃ済まない, but I guess that Yanagi is saying that Riku too is not satisfied. Then, the literal meaning of ゴミの分別 is "garbage sorting", but I can't really imagine how it could fit the context, so I guess it was used with a metaphorical meaning that I was not able to find on dictionaries. Also, I am not sure about the subject of してもらいたい, is it Riku or Baba?
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