This is not a Dak must go post, he is under contract and he is remain the starting QB for at least 2 seasons.
How do you fix this offense from personnel and scheme?
-Offense truly lacks any legitimate skilled positional players, outside of Lamb. They basically are playing bottom of the roster types at both WR and RB. Clearly, they need another alpha type receiver who will allow Lamb to see less attention and a legitimate explosive back.
-OL is in flux. Steele is a legitimate cut candidate after this season, he just hasn't returned to his pre-injury form. He is a major liability in pass protection. Guyton is a green rookie that seems to struggle with inside moves, he just needs more reps/experience as he possesses all the natural tools. Richards has always looked good in camp, the team needs to give him more of an opportunity. Zach Martin isn't an elite player anymore, is Beebe a better Guard then a Center? Solari has been a downgrade as the new OL Coach. They must replace Solari with more of a modern coach who is adverse with today's rushing schemes.
-MM scheme is totally outdated and easy to defend. There is no pre snap motion, rarely do we see a basic screen, receivers are always covered and he never stays with the run game, even when it's working. When you watch other offenses, you see receivers wide open, but never within this offense. Offenses today model the Shannahan/McVay, ton of pre-snap motion, mis-direction and easy reads for the QB. Problem here is they have pretty much the old air coryell type of personnel, which demands that the OL hold up in pass pro.
Like I used with the defense, the Lions are a good comparison to how you build a elite offense:
Goff-is real good when his run game gets going and doesn't move off his spot.
Montgomery/Gibbs-power/speed combo
St. Brown (their Lamb), excels in the slot, Williams the true speedy deep threat
LaPorta-an excellent all-around TE.
Their OL has 2 stars, with the rest working well as a unit-Sewell, Ragnow
You just look at their personnel and scheme, the Cowboys are no where near that type of unit. Sure, they have some parts, but need to start adding other pieces.
Year 1-should be landing that #2 receiver and addressing the RB position.