Tom Dienhart, BTN.com Senior Writer, August 19, 2015

The BTN bus just left Michigan practice, and now it?s time to share some nuggets I gathered while watching the Wolverines in action Wednesday morning.

[ MORE: 5 things Tom Dienhart learned | See our team's Michigan tweets ]

This was a very business-like practice. No music blared. There was minimal-if any-yelling. Just a classroom environment with lots of teaching. Nobody walked or lingered on the sidelines. The NFL experience on this staff shows. No wasted movement.

Staffers have described the Michigan camp as a ?submarine,? with no access beyond players and coaches who are here. It is all business and bunker with no media access.

An organization called Impact Cryotherapy visited practice in Mercedes-Benz van. The idea: sit in a freezing chamber for a few minutes, which replicates a longer ice bath. Harbaugh checked it out along with several players, who sat in the chamber.

Talked to senior center Graham Glasgow. He said he is one of just three players left from his recruiting class, along with LB Desmond Morgan and FB Joe Kerridge. Glasgow also told me he is living with his grandmother for the semester. A good way to focus.

Glasgow also said this staff has a lot more meetings than the previous staff, leaving no detail unturned. ?They want to make sure we know what we are doing.?

RB coach Tyrone Wheatley told me no backs have separated yet.

I talked to Jim Harbaugh briefly after practice. He was ready to watch the film already. I asked him if he had an agent. He does not.

DE Taco Charlton was leading post-practice sprint drills among linemen. He is an impressive specimen.

Dressed in his uniform of a blue ?M? cap, long-sleeve shirt and-what else?-khakis, Harbaugh spent most of his time with the QBs. He was on the go, always instructing. Very demonstrative with his movements.

Three kickers took turns at the uprights: freshman Andrew David; sophomore Kyle Seychel; senior Kenneth Allen.

Joel Klatt and Gus Johnson of FOX Sports watched practice. The duo had just been at Utah watching the Utes, whom Michigan visits in the opener. ?Utah is physical and well-coached,? Klatt told me. ?It will be a good test.?

Some nice options at wideout, with senior Jehu Chesson and senior Amara Darboh. Freshman Brian Cole was running with the second unit. I like the kid. Sophomore Maurice Ways also saw lots of action. Grant Perry was another freshman who was active.

Lots of tight ends saw action: junior Jake Butt; senior Michael Jocz; sophomore Ian Bunting; junior Khalid Hill. Butt told me his versatility should pose issues for opponents. Sounds like he?ll be all over the field.

The team will work out on Saturday in the Big House for the students.

Michigan has a two-a-day today. There were in full pads when we watched this morning, with some ?thud? hitting and live blocking on blitz drills and the like.

The linebackers look good. One unit had senior James Ross; senior Desmond Morgan; senior Joe Bolden. Another had junior Ben Gedeon; sophomore Jared Wangler; senior Allen Gant.

https://twitter.com/BTNLive/status/634136541502173184

***

About Tom Dienhart BTN.com senior writer Tom Dienhart is a veteran sports journalist who covers Big Ten football and men's basketball for BTN.com and BTN TV. Find him on Twitter and Facebook, read all of his work at btn.com/tomdienhart, and subscribe to his posts via RSS. Also, send questions to his weekly mailbag using the form below and read all of his previous answers in his reader mailbag section.

And if you want to leave a comment on this post, use the box below. All comments need to be approved by a moderator.