Here is what I think the value would be for these players...
-Pettersson: 1 year at $4 million 2nd + Prospect
-O'Connor: 1 year at $925k 2nd
-Eller: 1 year at $2.45 million 3rd
-Rust: 4 years at $5.125 million, Penguins likely need to take a bad deal back - No value. Likely only way you get out is a a bad contract swap.
-Rakell: 4 years at $5 million, Penguins likely need to take a bad deal back - No value. Likely only way you get out is a a bad contract swap.
-Nedjelkovic: 2 years at $2.5 million - 4th