We actually have 3 of the best signings on the current team. Zach Sieler, Raheem Mostert and Alec Ingold. Each one has delivered great value and are terrific team first guys. Remember, Mostert only broke the Dolphins team's season TD record last season. OK, when one looks at all time very best, Cam Wake is probably up there.
In terms of worst free agents - Lawrence Timmons from the Steelers was a complete dud. Mike Wallace was terrrrrible too. (Charles Barkley pronunciation preferred). Key learning - keep away from expensive Pittsburgh Steeler free agents. If there was any gas left in their tanks, the Steelers would have re-signed them.