A source reiterated on Friday that head coach Jim Boylen remained confident that he will keep his job heading into next season, and was pleased with the relationship he’s already built with Karnisovas and new general manager Marc Eversley. The Sun-Times, however, reported last month that Karnisovas and the new-look front office had heard enough from key players and the mixed feelings they had about Boylen, to be prepared to make a coaching change once they went through a “deliberate’’ process of getting to personally know Boylen.