This makes no sense....How can we trade before free agency ...the trade window for league does not start til March 14 the same day free agency begins,
March 12-14
Clubs are permitted to contact, and enter into contract negotiations with, the certified agents of players who will become Unrestricted Free Agents upon the expiration of their 2017 player contracts at 4:00 p.m., New York time, on March 14. However, a contract cannot be executed with a new club until 4:00 p.m., New York time, on March 14.
March 14
Trading period for 2018 begins at 4:00 p.m., New York time, after expiration of all 2017 contracts.