There is still a lot of work to be done around the league before this offseason can be declared over. The two biggest names on the market are still unsigned. The best reliever, one of the top starters and one of the top outfielders are still waiting for new contracts as well. Arguably the best catcher in baseball is presumably still available in trade. It seems the hot stove season drags on longer than ever these days, which means the secondary movement also has to wait a bit.
Now, there have been plenty of minor-league signings by the Red Sox and other teams already as the lower-tiered players don’t want to wait and be pushed out by players with better reputations that are seeing their markets pushed down.