IOL Marcus McKethan: The Good, the Great, and the Ugly

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New York Giants offensive guard Marcus McKethan has started the last two games at right guard after a subpar game one performance by Mark Glowinski. After a first season mostly spent on injured reserve, McKethan worked his way up the depth chart throughout training camp and preseason.
Over the past two games, McKethan has taken 100 percent of the snaps at right guard and has performed well. The North Carolina talent is coming into his own, and obviously, the organization would love for him to cement himself as the permanent starter.
He still needs to clean up some things in his game, but there are reasons to be encouraged for Giants fans. Here is the good, the great, and the ugly from his performance against the 49ers.
The Good: Pass Protection Punch
One of the best ways to neutralize a pass rush is to stop it before it starts. How do offensive linemen do it? They usually start with a strong initial punch.
McKethan has 35.5-inch arms and 10.5-inch hands, both longer than your average NFL player. When he shoots them out at defenders, they are like pistons capable of stopping advancers in their tracks.
McKethan has such strong hands and long arms that his initial punch can be jarring to defenders. It is one of the better parts of his game. pic.twitter.com/YqRaB5pExQ
— Coach Gene Clemons (@geneclemons) September 29, 2023
His pass blocking is still unrefined, but when he gets a good punch on a defender, that is normally the end of an effective pass rush for the play. He often only needs to extend one arm to jolt the defenders' efforts, and that is a great place to start when blockers protect you on either side of you.
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The Great: Run Blocking
When you come from a program that leaned into the run game because they had you out there, that should probably translate to the NFL immediately. There is no surprise that is the case for McKethan. He has all the tools as a run blocker to be a high-level road grader in the league.
McKethan is a mauve human being with good athleticism and power. That mixed with a little nasty in him is what makes him great in the run game. pic.twitter.com/gU2oYdsEk9
— Coach Gene Clemons (@geneclemons) September 29, 2023
He has just enough athleticism that it allows him to pull and climb to the second level. He also has the power and explosion to cause major impacts when he strikes defenders.
He can be devastating on a double team and is also smart enough to understand when to break from a double to pick up a dangerous defender. Trap blocks to kick out blocks are difficult for defenders to "wrong arm," and defensive backs have no chance 1-on-1 in the secondary.
In the 49ers game, there were not a lot of recorded runs, but there were some RPOs where he was opening really good lanes to run through, and Daniel Jones just decided to pull it and throw. Expect those to be handoffs next time.
The Ugly: Inconsistent Balance in Pass Pro
Although McKethan has a punch that can jolt a defender and get them off rhythm, if the punch is ineffective, he is inconsistent with his weight in pass protection. The result is that defenders can get him off balance during pass pro in many ways.
He is sometimes top-heavy and finds himself leaning "over trying" to block. That is when defenders take advantage of using his momentum against him.
The Ugly of McKethon is an inconsistency in his pass pro. pic.twitter.com/13iXQduOQk
— Coach Gene Clemons (@geneclemons) September 29, 2023
Push pulls and swim moves were the go-to moves for 49ers defensive linemen in the pass rush. They would either pull themselves by him or do a swim move around him. When he sits too far back in his stance, he can get put back on his heels and allow rushers to get on his edge and go by him.
Final Thoughts
The time is now for many of the younger players on this team to step up and show what they can bring to this team long-term. McKethan has the opportunity to do just that.
Glowinski’s performance opened the door, and Joshiia Ezeudu’s move to tackle with the injury to Andrew Thomas cleared the way. Now, consistency will be the key to McKethan making the job his for the long haul.
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Gene "Coach" Clemons has been involved with the game of football for 30 years as a player, coach, evaluator, and journalist. Clemons has spent time writing for the Worcester Telegram and Gazette, Bridgton News, Urbana Daily Citizen, Macon Telegraph and footballgameplan.com. He has a YouTube channel called "Coach Gene Clemons" where you can find his popular "X&O The Joes" series as well as other football related content.
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