Allen completed 10 of 18 passes for 72 yards.
OU coach Bob Stoops was adamant that he won't name a No. 2 quarterback until there's no doubt.
“I don't feel any need or hope to have to do that really quick,” Stoops said. “To have one in front of the other, that soon ... there's no need to do it. If we feel it's cut and dry, we'll do it.
“We know what we feel. We're just not much on telling (the media). We'll do it as we feel the need to, or as we feel what's best for the team.”
Co-offensive coordinator Josh Heupel cautioned against drawing any conclusions based solely on Saturday's spring game.
“(Bell and Allen) weren't consistent enough in handling the clock and the mechanics,” Heupel said. “The detail things that don't necessarily show up in the stat book that we need to get better at.
“We're gonna go back and watch the tape. We have had a couple other scrimmages we've been through, and 14 days of work. It's a body of work; it's not just one afternoon.”
Last year at this time, Bell and Allen entered the spring game competing to back up Jones. In the 2011 scrimmage, Allen far outplayed Bell.
Saturday, it was Bell who appeared to take an edge.
“All I can do is go out there and compete, and I've been doing that,” Bell said. “The coaches will decide. ... I can't control that.”