Briles is pretty much the anti-Leach.
AB's offensive philosophy, while sharing some of the basic Air Raid concepts, is distinct in that it is a run-first attack. Last season BU ran the ball 576 times and threw it 424; if you look at Briles' HC career (Hou & BU), the only time he had a team throw more than run was 2009 (when RGIII missed most of the season with a knee injury).
Leach may be talking about emphasizing the run more, but as a long time observer of his coaching methods I'll believe it when I see it. Just take a look at the run-pass numbers for The Pirate's last 3 seasons at TT:
'07 246 R 763 P
'08 317 R 662 P
'09 319 R 669 P