Keeler: DU lacrosse coach Matt Brown can’t stop making Pioneers legend Bill Tierney smile. “The best coaches are teachers. He’s a great teacher.”

Keeler: DU lacrosse coach Matt Brown can’t stop making Pioneers legend Bill Tierney smile. “The best coaches are teachers. He’s a great teacher.”

Blood doesn’t show on a crimson jersey. Pop the hood, and Bill Tierney recognizes the DU lacrosse chassis he built, all scars and sweat, with his bare hands all those years ago. But the engine, the wheels, the steering, the brakes, even the head gaskets? Matt Brown’s fingerprints. Everywhere. “I think when you leave a job and leave it in good hands, you don’t have to worry,” the iconic former Pioneers lacrosse coach told me in advance of DU’s Fi…