The Bruins have been able to do very well without Bergeron and Krejci this season thanks to their two starting goalies in Swayman and Ullmark. The two goalies together have a .915 save percentage that puts them behind only Hellebuyck in the entire league.
Ullmark has been excellent for the Bruins thus far with a 5 million cap hit for this season and the nex,t which makes him a valuable target for a team looking to improve in nets at a good price. One of the issues is that Ullmark has a 16 team no-trade clause in his contract.
Ullmark is definitely the Bruins biggest trade asset since he is worth the most and can have a big return while still having a very good number 1 goalie in Jeremy Swayman.
Sweeney will have a tough decision to make regarding the Bruins netminder before the deadline if he wants to make a big acquisition and make a push to win the Stanley Cup.