You're talking about different things
Clarkson was brought in to be a top 6 forward and score 20-25 goals. unlikely anyone on the Marlies was doing that. As it turned out Clarkson failed.
Raymond was a gift and did his job. He will want a raise, but he's a guy you let walk and hopefully have a kid ready to fill that role.
Don't get me started on letting players walk for nothing
