The coaches had to share his vision of the style he wanted to play, and the coaches had to be willing to learn the terminology of the offense already being used.
"What I found in going through my career is that if the assistant coach's philosophy doesn't mesh with the head coaches philosophy, when you win it's not a problem," Flood said. "But as soon as you're not winning, then everything is a problem and you can't unwind it at that point. You can't fix it.
"If you're in line with your coordinators – offense, defense and special teams – as the issues come up in a season, you have system in place, you have a solution in place."
However, when things go wrong, the staff-meeting discussions are very different.
"Then, you are arguing about philosophy still," he said. "You're not talking about the problems and the solutions."
And when it comes to the terminology used in the offense, Flood understands the team is built to win now, and changing the offense and the language used to call play could create a learning curve.
So, when offensive coordinator Dave Brock was hired, his familiarity with Rutgers' offense, and his philosophy of a two-back, run-driven offense meshed well with Flood's desires.
"Terminology will be exactly the same," Flood said. "We're at a point in our program where there is no reason to set the players back with language. One of many reasons Dave Brock was so important to me was Dave had worked with (former Rutgers offensive coordinator) Frank Cignetti at North Carolina, so he was already very familiar with what we do.
"It was a very easy transition when Frank decided to go to St. Louis to hire Dave. I'm not trying to devalue how good of a football coach he is …but it was a bonus I could bring him here and he already had familiarity with the system."
Flood settled on his offensive philosophy long before he was named head coach. He began his coaching career as an assistant at St. Francis High in New York, and also coached at C.W. Post, Hofstra and Delaware before moving to Rutgers in 2005.
He will employ a pro-style, two-back offense with the idea of developing a powerful running game.
"I think it's my personality," he said. "It's what I enjoy the most, and I've worked in all the different systems. I've worked in the run-and-shoot, I've worked in the no-huddle spread. I've seen then all. It's what I'm most comfortable with, and I also feel that in the northeast, it's what you need to be.
"You better be able to be a physical, running football team and play really physical defense to win in the northeast."
However, Flood does not plan on taking an active role in the offense.
"The day-to-day operation of the offense are (up to) Dave Brock and (quarterbacks coach) Rob Spence," he said. "The most important thing to me is my philosophies of what I'm looking for are carried onto the field. At the end of the day, it's Dave Brock's job to put the best players on the field, and get the most out of them, and that changes every year.
"Last year we did a number of things for Mohamed Sanu because of who Mohamed Sanu was. Right now, I'm not ready to say if there is one person like that. We will learn that in spring."