The collapse of the 2017 Dallas Cowboys can be, in large part, attributed to the collapse of their offensive line. When left tackle Tyron Smith was forced to miss time with various injuries, neither Chaz Green nor Byron Bell could get the job done in his place. Not only were these two replacements unsatisfactory, however, they were disastrous.

From the beginning of the 2017 season the Cowboys had a problem at left guard as well. With Ronald Leary departing for Denver and La’el Collins replacing Doug Free at right tackle, the left guard spot was left to an open competition between Jonathan Cooper and Chaz Green. Quite frankly, neither was impressive.

As a result Dak Prescott’s sophomore season was nowhere near as fun or remarkable as his rookie season, and the Cowboys faltered down the stretch as a team. Trying to rectify these issues, Dallas drafted Texas offensive lineman Connor Williams in the second round of last year’s draft.

Though it could be argued that, on paper, the Cowboys had more pressing needs than their All-Pro filled offensive line, adding a player like Connor Williams was exactly what this team needed to do if it wanted to emulate its 2016 success.

So, through one preseason game, how does the rookie look? Let’s take to the film to decide just how good (or bad) Connor Williams was in his debut.

Let’s begin with the bad. Really the only completely poor rep of the night for Connor Williams came on the first drive of the game. Williams is working against former first round pick DeForest Buckner here. Buckner, lined up as the 3 technique over Williams’ outside shoulder, knows he is in a one-on-one situation with the rookie.

Buckner immediately swipes Williams’ hands down, quickly flipping his hips and getting upfield. Besides not getting a strong enough punch, Williams’ biggest mistake is that he stops his feet on contact. This allows Buckner to get him off balance, forcing Williams to bend at the waist and look lost.

Buckner then blows by him for the easy quarterback hit.

Later on the same drive we see Williams struggle to execute a reach block. Once again Williams is faced with a 3-technique, this time defensive tackle Sheldon Day. Day gets a great get-off, beating Williams initially with his first step. Day then does a great job of stoning Williams’ playside shoulder and redirecting the running back.

This is another example of Connor Williams needing to increase his play strength and speed a bit. Multiple Cowboys reporters at training camp have mentioned these issues with Williams’ game, and they flashed on tape during this rep.

Thankfully for both Connor Williams and the Cowboys, things only went uphill from here.

On Dak Prescott’s touchdown pass to Michael Gallup we see Connor Williams correct everything he had wrong earlier.

Williams comes out of his stance square, delivers a solid punch, and stones the defensive lineman at the line of scrimmage. Williams stays strong with his hands even as the defender attempts to swipe them down as Buckner successfully did earlier.

He allows for no interior pass rush and keeps Prescott’s vision clear down the field.

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Earlier on the same drive we see Connor Williams work well off a double team and on to the second level. Williams delivers a solid punch to the 1-technique on the inside of him, allowing Travis Frederick plenty of time to overtake the man and drive him back.

What’s most impressive, though, is how Williams keeps his shoulders square and his eyes on the second level the entire time. He never buries his head or over-commits to the down lineman, allowing himself to be an athlete and help spring Rod Smith for a nice gain.

Despite some legit reasons for concern about Williams’ game, I do believe he will be fine moving forward. Connor Williams is an excellent plug and play left guard who provides some tackle depth as well, and is a vital addition to the Cowboys 2018 offense. His debut performance gives all of us even more reasons to be excited about this offensive line.