They're pretty much locked with the 21-man roster that they have, as with $300K they can't do anything. However, if you wanted to move a contract or two to get some money, you certainly could. One of them is
Jack Campbell at $5 million, as that is Ken Holland's worst move at GM. But it would be a struggle to find someone to take it, and you might have to give them picks and other players to convince them to take it in the first place.