Who were the veterans that Doughty, Clifford, Simmonds, and Moller pushed out? You can say Visnovsky was traded after they found out they were picking #2 and knew they were getting Doughty, but they still did get Greene, so you could say he took Visnovsky's spot if you wanted. Cammalleri was traded, but that was at the 08 draft, not the 08 training camp. The only move DL made around training camp that year was getting ODonnell. Calder was still on that team. Armstrong was still on that team. Clifford didn't push any veteran out in the 2010 training camp. No old guys ended up in Manchester. No trades in Sept/Oct.
It's not about paying dues. It's contract realities.