Glen Elarbee is a legit O-line coach. His O-lines are always solid. From the UCF coaches site....
Elarbee came to UCF after coaching the offensive line at Missouri (while working with Josh Heupel) for two seasons in 2016-17. His line at Mizzou helped the Tigers to 2017 national ranks of No. 7 in total offense, No. 7 in sacks allowed, No. 10 in scoring offense, No. 14 in passing offense, No. 21 in first downs, No. 23 in red zone offense and No. 35 in rushing offense. Elarbee took over a Tiger offensive line in 2016 that had no returning starters and molded that group into one of the top lines in the nation. In 2016, Missouri was No. 13 in total offense, No. 20 in passing offense, No. 38 in rushing offense and No. 48 in scoring offense after the Tigers were no higher than No. 113 in those categories the year before. His 2016 unit led the nation in fewest tackles-for-loss allowed and were No. 16 in fewest sacks allowed.
Elarbee’s first year in Orlando in 2018 was highlighted by one of the best offensive lines in program history, as the Knights repeated their undefeated regular season and won a second straight American Athletic Conference Championship. UCF set the program rushing record with 3,448 yards on the ground behind a powerful line, which was the eighth-best ground attack in the country. UCF totaled 522.7 yards of total offense per game, good for fifth nationally. The Knights also excelled in pass protection with just 19 sacks allowed all season, which ranked 25th nationally.
In 2019 UCF again had one of the most productive offenses in the nation. The Knights averaged 540.5 total yards (second in the nation and an all-time UCF single-season record) and 43.4 points per outing (fifth nationally). The offensive line helped protect freshman quarterback Dillon Gabriel who played a major role in UCF ranking eighth with its 316.7 passing yards per game. A diversified Knights’ rush attack (ranking 19th nationally) saw the top four runners—Otis Anderson, Adrian Killins, Bentavious Thompson and Greg McCrae--combine for 2,488 yards, 27 TDs and an amazing average of 6.46 yards per carry.