McGill, Mims and White.

Sounds like a good name for a law firm.

As it relates to St. Augustine football, it is the quarterback rotation of the No. 7-ranked large-school football team in the New Orleans Advocate’s Super 10.

In order they are Dwayne McGill Jr., Michael Mims III and Josh White.

One or all three of these Purple Knights figure to play a significant role in St. Augustine’s offensive fortunes in Friday’s showdown against fellow Catholic League unbeaten John Curtis.

St. Augustine (5-1 overall, 3-0 District 9-5A) enters the 7 p.m. kickoff at the Shrine on Airline holding a half-game lead against Curtis (5-1, 2-0), top-ranked in the Super 10.

“We have three quarterbacks, and we just kind of mix it up with them,’’ St. Augustine coach Al Jones said. “We may start one player and then the next play another quarterback will be in there. So starting is one thing and coming in is another thing.

“So it doesn’t matter who starts. We’re going to put all of them in. We’ll play all three of them.’’

Although White, a 5-foot-8, 155-pound sophomore, officially is listed as the starter, he is a converted wide receiver whose ascent to the top rung initially was tied to injuries, first to McGill and then to Mims.

McGill, a 6-foot, 175-pound senior, was projected as the regular-season starter before suffering a high ankle sprain in St. Augustine’s Nick Connor Jamboree that propelled Mims, a 6-foot-1, 160-pound junior, into the lineup.

Mims completed a 27-yard scoring pass to Joseph Walker in the third quarter to provide the lone points in a 6-0 upset of McDonogh 35 in the season opener. But he was sidelined by a leg injury one week later during a 38-12 loss to undefeated De La Salle.

White filled in admirably, directing the Purple Knights to consecutive victories against Capitol, Jesuit and Brother Martin until Jones and the coaching staff reshuffled the deck and started McGill in last Saturday’s 29-3 District 9-5A victory against Shaw.

McGill, the Knights’ backup quarterback in 2016, completed 12 of 20 passes for 106 yards in the weather-shortened game.

McGill, who saw his first playing time in relief in the previous two games, also recorded his first scoring pass of the season, a 25-yard touchdown on fourth down to Broderick Martin.

In addition to catching five passes for 40 yards, White relieved McGill at quarterback for the Knights’ final two offensive possessions.

“Josh (White) is our starting quarterback,’’ Jones said. “We needed to get McGill some meaningful snaps. I wanted to start him in a full-game situation, because we’re going to need him down the road. Michael is going to play, too. He was about to come in the game (against Shaw) and the rain came.’’

The trio of Knights quarterbacks have combined for 718 yards and 9 touchdowns between running and passing.

White, the most effective runner, has rushed for 146 yards and four touchdowns on 32 carries while completing 15 of 26 passes for 203 yards and one touchdown with five interceptions.

McGill has completed 12 of 21 passes for 119 yards with one interception and the score against Shaw. Mims has completed 18 of 25 passes for 244 yards and three touchdowns and one interception.

“If we’re deep in our territory, we want to run the ball out,’’ Jones said. “Josh is a better running quarterback. McGill can manage the game. He is a better manager of the game, a good manager of the game. Being a senior, he knows the offense better.

“Dwayne can make some safe passes and safe throws for us. Mike is probably a combination of a good passer and he can run some. Mike is just inexperienced. It’s his first year playing. Michael is learning. Michael is going to be a good quarterback.’’

In tight situations, Jones said, “you lean toward experience.’’

The Knights invariably also lean on their defense, which has produced two shutouts and played three games without surrendering a touchdown. Curtis, ranked No. 2 in Class 5A, is coming off a 56-28 victory against Jesuit in which the Patriots ran for 370 yards, six touchdowns and averaged nearly a first down on each rushing attempt.

Curtis defeated St. Augustine 28-26 last season en route to its first Catholic League championship after defeating the Purple Knights 21-14 in 2015. St. Augustine won the previous two meetings, 15-13 in 2014 and 29-28 in 2013.

“They have always played extremely well against us,’’ Curtis coach J.T. Curtis said. “It’s always been a hard-fought, down-to-the-wire type of game, and I anticipate the same thing this week.

“You’re looking at a St. Aug team that I think has found their identity. They’re doing a nice job of moving the ball and mixing in the pass with their run. I think they’re probably a little more run-oriented than they have been in the past. That’s playing to what your strength is.

“Their defense has been solid. They’re a big, physical defense that can run. Again it’s a typical St. Aug team, and I think it will be a typical John Curtis-St. Aug game that will be really close and be really hard fought.’’