ARLINGTON -- The XFL's goal is to be an up-tempo, fast-paced, offensive-driven game.

So it makes sense that Dallas general manager and head coach Bob Stoops would hire Hal Mumme, the originator of the air-raid offense, to be his offensive coordinator for the upcoming season.

"I believe it will have success," Stoops said Friday after the league's Summer Showcase at UT-Arlington's Maverick Stadium. "I've had success with it any time we've run it at Oklahoma for all these years and it continues to do well there.

"At the end of the day, I know we'll be exciting and fun to watch."

XFL teams won't be able to draft their rosters until early October, but Friday marked the league's first official football event. Roughly 100 former standout college players and some former NFL players attended, hoping to show they can help one of the league's eight teams.

It was also the first time former Cowboys star Daryl "Moose" Johnston got a chance to meet with Stoops since being named director of player personnel for the Dallas franchise.

Johnston said one of the topics he and Stoops discussed was the success Mumme's offenses had at the University of Kentucky against Stoops' defenses at the University of Florida in the late 1990s.

"He was very excited to bring that to Oklahoma where the quality of player is better," Johnston said. "And then you see the success that it's had. We're hoping to kind of duplicate that.

"The great thing about Hal is that he's like, 'Give me some people. It works. We'll put them in there and we'll figure it out and we'll go play football.' You love a guy with an attitude like that."

BRIEFLY: Bob Stoops named QB Landry Jones, safety Ahmad Dixon and DE Frank Alexander when asked about players who caught his eye at Friday's XFL Summer Showcase. Jones and Alexander played for Stoops at Oklahoma. Dixon was a Baylor standout before being drafted by the Cowboys in 2014. "The arm is still there," Jones said. "The arm will be there until I'm dead and gone, but it just depends on if I can move around anymore." ... Stoops on selling the XFL to local NFL fans: "I'm not expecting to steal any Cowboys fans. But when you take your jersey off after the Super Bowl, put ours on for a couple of months. When September comes, throw back on your Cowboys jersey."