Bino Ranson, the Eagles announced, is one of five finalists who will interview on campus next week.
The former Jacksonville head coach and Georgia Tech assistant joins Mark Turgeon's staff.
Now the Coach Mark Turgeon must turn to a plethora of backup options to replace Scott Spinelli.
Johnson has also drawn interest from Louisville and other schools, source said.
Spinelli's contract, a two-year deal, is believed to make him one of the highest-paid assistants in Boston College history.
The deal was made official this weekend on Spinelli's visit to campus.