​STILLWATER — Eric Morris made his message to Oklahoma State quarterback Drew Mestemaker impossible to miss.In OSU’s quarterbacks room this week, the words “Let’s not turn the ball over” were displayed in 48-point font. Message received loud and clear. Mestemaker stayed turnover free Saturday in a 42-28 win against UCF.If Mestemaker, who ESPN analyst Jordan Reid projects as the No. 1 quarterback prospect in the 2027 NFL Draft, has shown any flaws this season, it’s being turnover prone.Before Saturday, Mestemaker turned the ball over at least once in each of his starts at OSU. More: Oklahoma State football flips script vs UCF on Evan Jackson’s defensive TD | 5 takeawaysMestemaker threw two interceptions and fumbled against Tulsa. Two interceptions against Oregon kept the Ducks in the game. Even Murray State forced a fumble in a 59-0 blowout. Against West Virginia, Mestemaker threw one interception. Coming off the bye week, Mestemaker eliminated the turnovers and kept the familiar eye-popping numbers: 304 passing yards and three total touchdowns.How did he squash the turnover bug?“I thought his eyes were really good and really didn’t put the ball in harm’s way the whole entire night,” Morris said. “Just testament to him. Made some unbelievable throws and put it into space and was able to keep us for the most part ahead of the chains. I thought he really managed the game really well.”Fixing the turnovers has been a focus for Mestemaker.Mestemaker went back home to Austin last week during OSU’s bye. He said he hung out with his girlfriend and used his TV’s multiview feature to watch several football games at once. He also spent the time recalibration time assessing his turnover troubles, which, he says, starts with processing the defense before the snap begins. “I’d say just my eyes presnap to postsnap and being on time on target with all my reads and not making anything up out there,” Mestemaker said. More: Mike Gundy reflects on Oklahoma State football tenure during TNT showThere was one play Saturday where Mestemaker’s eyes weren’t in the right place. He was sacked for a 9-yard loss in the first quarter. Morris said the blame for that play falls on Mestemaker, not his offensive line. “There were a few plays, that sack I took … I was kind of panicking back there and didn’t really get through my reads right,” Mestemaker said. “It was kind of a weird look from the defense so it was kind of just stuff like that and puts us in bad situations. We ended up converting, but it’s third-and-14 which is not ideal. Just limiting those plays and limiting turnovers and keeping the ball on schedule.”Other than that play, Mestemaker’s eyes went to the right place. He completed 19 of 28 passes (68%) against UCF.Morris doesn’t need 48-point font to tell Mestemaker he trusts him; It’s clear in the freedom he gives Mestemaker to change the play pre-snap. That freedom is what will allow Mestemaker to continue to stay