As much as everyone outside the Towson University football program was shocked two weeks ago when the host Tigers upset Villanova, then No. 20 in the Football Championship Subdivision rankings, Ambrose and his team were not.
His players could see it coming together in January, when Ambrose split the team up in a program they called "Tiger Accountability" to compete in everything from classroom attendance and performance to clearing their trays in the dining hall and keeping their locker room clean.
But those who weren't with Ambrose and his players couldn't fathom how it happened. Not after the Tigers had won two games in 2009, Ambrose's first season back at his alma mater, and only one in his second. If anything, it had looked after last season as if Towson were returning to the abyss.
"To the normal eye, it looks like nothing is getting done," Ambrose, 41, said in his office earlier this week. "It's like building a house. When there's the foundation and everything's not finished, it just looks like a mess."
Ambrose knew better, and now with a pair of one-sided victories over Morgan State (42-3) and Villanova (31-10), the Tigers will try to take another significant step in their turnaround when they play Colgate (1-2) in Saturday's 7 p.m. homecoming game.
"There's no question that this is a huge game," Ambrose said of a game against a school Towson has never beaten in nine tries, the most recent in 2007. "You have alums who are hungry for an excuse to come home, and now they have one."
With the school's first game against Maryland looming next Saturday in College Park, Ambrose knows how important it is to keep the good vibes building, the fan interest growing, the confidence of his players bubbling.
So does longtime assistant coach John Donatelli, now in his 15th season. As much as Ambrose saw the stops and starts the program had under former coach Gordy Combs, Donatelli was a part of it as a member of the coaching staff.
"It was always taking one step forward, two steps back," Donatelli said.
A former Towson player and assistant under Combs, Ambrose understood why the Tigers couldn't sustain that success against the likes of Delaware and James Madison. Ambrose, who was the former offensive coordinator under Randy Edsall at Connecticut, knew how various administrations debated about playing with or without scholarships.
It all came back to the players.
"We did a lot of things not to take care of our kids," Ambrose said.
Aside from not being given as many scholarships as the competition until finally becoming fully funded with 63 scholarships five years ago, Ambrose and others say Towson took shortcuts such as not paying for its players' books, as allowed under NCAA rules. Schools such as James Madison, which started its football program the same year as Towson, did not and wound up winning a national championship.
Donatelli said the best example came in the way the Tigers fed players on road trips. If Towson was playing a night game on the road, the pre-game meal was not exactly a source for energy.
"Apples and Snickers bars," Donatelli said.
That culture has finally changed, with former president Robert Caret the first to understand how important the football program was to the growth of the university, but also realizing that the Tigers needed more of a tough-love approach than Combs was willing to give.
"Rob has changed everything, from expectations to accountability to changing the way we think, we act, we dress, we talk and we treat each other," Donatelli said. "It has taken two years to begin to get it done. Everyone associated with the program understands it's about the little things on a daily basis. It's about the details."