Rusney Castillo has now been in the organization for over a year, and he remains a total mystery. (Chris Teeter; BP Boston)
Owens remains a mystery after his Red Sox debut
Henry Owens showed flashes of a successful big league pitcher in 2015, but just how good he becomes for the Red Sox remains to be seen.
Castillo does still have some potential, but there is also not a ton of depth behind him. (Christopher Smith; Masslive)
Alex Speier delves into the reliever revolution taking place around the league. (Alex Speier; Boston Globe)
Jason Mastrodonato covers a plethora of topics in his mailbag. (Jason Mastrodonato; Boston Herald)
Although he's no longer in the organization, Sox Prospects still reviews Javier Guerra's past and looks into his future. (Sox Prospects)
There were a lot of big moments in Boston sports this year, and a few even included the Red Sox! (Chad Finn & Eric Wilbur; Boston.com)
Have a safe and Happy New Years!