It is always easy to see on the first day of every spring practice and every fall camp when you start looking at individual players and how they have developed under Glass.
"I have always said this job would be a lot harder if Rob Glass weren't here," Gundy said the other day. "He did a good job (this summer), as always. The players looked really good. Some of the second- or third-year guys have really developed.
"Jimmy Bean, a fourth-year guy, is up over 250 pounds. Chad Whitener is up over 240. Trey Carter came in here at 225, and I saw that he’s at 275 now. The team looks really good.”
Those players are all strong beneficiaries of Glass and his training but my All-Glass team for this fall camp consists of two defensive ends and one Cowboy back.
Tulsa Booker T. Washington defensive end Jordan Brailford had an injury and surgery before his freshman season even started. An athletic defensive end and linebacker for the Hornets, Brailford made a strong impression nationally in the Semper Fi All-American Game. However, at 220 pounds he was not anywhere near defensive end size.
"I gained a lot of weight and I took a lot of mental reps," Brailford said of last fall and his redshirt season. "I gained about 30 pounds while I was out and just lifting. It is a little surreal having this brand new body now. I just hope I can do something with it when I gets a chance."
Another defensive end, Cole Walterscheid of Muesnter, Texas, played every sport in high school. He came in a twig at 6-7 and 220 pounds. He was a lock to redshirt.
"It was different, of course, and coming in as a freshman and undersized I knew there was a lot of work to do and a lot of work to do in the weight room," Walterschied said. "I was doing what was best for the team and try to make everybody better on the scout team."
My third member of the All-Glass team is Cowboy back Jordan Frazier, who came in off a national championship home school team in Springfield, Mo. He has a healthy attitude about his season on the redshirt list.
"Honestly, it was a blessing in disguise coming from the home school program just because in high school I had played all over the field. I played quarterback," Frazier said. "To be a tight end, not only do we play all over the field but I had to get in the weight room and I had to learn technique and those dynamics, so it was important for me to have that time."
Frazier was bigger than either Walterscheid or Brailford as he came in around 230 pounds, but now he is 6-5, 260 pounds.
"In a program like this when you have these resources it gives everyone a chance to kind of meet their threshold in those things," Frazier explained. "It was extremely important because with the Cowboy back position you have to be so versatile. One play you may be in line and be a powerful blocking tight end and then the next play in the backfield where you have to move. It was very important to me."
Walterscheid was 6-7, 215 pounds and really skinny. Now he is 255 pounds and looks very legit for a college defensive end.
"My coaches in high school told me that when I got up here I would blow up," Walterscheid said. "I had always tried to put on weight and when I got up here with coach Glass and got in the weight room and got with a nutritionist and started eating right I put on about 40 pounds in the first year."
On the first day that OSU was in shoulder pads and helmet this fall camp, a couple of days in and the first team period it was Frazier that caught a pass from Mason Rudolph, his freshman roommate, and went down the sidelines for the first big play of the day.
"I think it all goes with how the season doesn't start with the season, it starts with day one of the offseason and being around coach Glass helped with that," Frazier said. "That building up has really helped me with confidence."
Life with Glass and also life with the Cowboy backs has benefitted Frazier.
"Having guys like that is like having a little set of coaches for one position," Frazier said. "Seaton has been around for four years and Jarwin has been around and is a veteran. It is really important for a young player like me."
During fall camp we have seen the two young defensive ends make plays too. Brailford and Walterscheid have both had some moments to use to keep motivated in climbing a tough depth chart at their position.
"Whenever I get a chance to get into the game then I'm going to go as hard as I can," Brailford said. "I want to get into the quarterback or whoever has the ball. It is about making plays."
"I just try to study my playbook and stay into it and hustle the ball and do what I can to make plays," Walterscheid added.
They also have a tremendous example in Emmanuel Ogbah, the returning Big 12 Defensive Lineman of the Year. He could easily coast in practice but plays every play like it is the last of his life.
"He goes so hard and blows everything up," Brailford said. "I'm not anywhere close to where he is but my goal is to work hard and try to get there and to work as hard every practice, every play as Ogbah does."
"He (Ogbah) really is a workhorse and being under him and Jimmy both has been great as they are both role models and we are learning as much as we can from them," Walterscheid said.
Three dramatic body changes, three players pumped up in the weight room, but also infused with confidence on the All-Glass Team.