Mere speculation, but ...
Matt Barnes' agent may have approached Red Sox management with Liam Hendriks as a comp. Last offseason Hendriks signed a three-year, $54 million contract.
The front office may have countered with Alex Colome, Mark Melancon and Greg Holland, who last offseason, like Barnes this year, were coming off solid campaigns. Colome and Melancon signed one-year, $3 million contracts while Holland signed a one-year, $2.75 million contract.
Negotiations may have resulted in a contract in the range of those signed last offseason by Blake Treinen and Trevor May.
Or not.
Treinen and May signed a two-year, $14 million contracts.