One league source with knowledge of Boston’s plans said Bertans, who is shooting 42.9 percent from beyond the 3-point line on 8.4 attempts per game, was never made available by Washington. The source said reports that he could be acquired for two first-round picks were inaccurate. Also, the fact that Bertans is an unrestricted free agent this summer would have made Boston reluctant to surrender that bounty anyway.