When UAB opposes No. 22 Memphis in Birmingham, Ala., on Saturday, the Blazers will do so under the direction of a new coach, and that’s a little concerning to Tigers coach Ryan Silverfield.The Blazers (2-4, 0-3 American) dismissed coach Trent Dilfer on Sunday, a day after the team took its third straight loss, 53-33 at Florida Atlantic. UAB tabbed Alex Mortensen to take over the program.Mortensen, a former Arkansas quarterback, has been the Blazers’ offensive coordinator since December 2022.The Blazers’ offense is averaging 29.5 points per game, tied for 58th among FBS programs. The defense, though, is last among the 136 FBS schools with an average of 41.3 points allowed.The Saturday game appears to be a mismatch on paper as the Tigers (6-0, 2-0) score 40.5 points a contest, good for 13th nationally. They rack up 450.2 yards per game, third best in the conference. At 238.7 yards per game, the Tigers also boast the nation’s 10th ground game, with three players already having at least a 100-yard game.However, don’t expect Silverfield to feel that the game is a gimme considering what has happened in college football this season. He noted how UCLA has played under interim coach Tim Skipper since the Bruins fired Deshaun Foster three games into the season.”Obviously, it gives you a little bit of angst, because there’s some unknowns,” Silverfield said, wondering if UAB may try a surprise onside kick as the Bruins did in an upset win over Penn State two weeks ago.Because of that, the Tigers, who are coming back from their first off week of the season, must play sound football when they return to the field, according to their coach.”We don’t go chasing ghosts, as we say quite often, but we’ve got to be prepared for possibly everything,” Silverfield added.