If Zirkzee is finding rhythm again, that matters beyond goals. United have often lacked a forward who can bring others into play, hold possession under pressure and give attacks a little pause before they accelerate.
That profile is especially useful in a side built around runners and creators.
Another report says Bruno Fernandes is not for sale despite outside interest, which is an important signal. Keeping the captain in place after a record-breaking creative league season gives Carrick continuity in the one area elite teams rarely gamble with.
A sharp Rashford changes the mood around Old Trafford quickly. At his best, he gives United direct running, speed in transition and a threat from the left channel that defenders hate facing.
The key question is not simply whether he starts well, but whether United can build a structure that consistently puts him in dangerous positions. That is where Zirkzee’s form could become decisive. One player connects the move; the other finishes it.
This remains the obvious gap. A natural left-back would give United width, overlap and defensive security on one side of the pitch. Without that balance, attacks can become predictable and the press can lose its shape.
For a team trying to look more complete under Carrick, it feels less like a luxury and more like the last major piece.
The next step is seeing whether this promise survives the start of the season. And with tougher autumn tests ahead - including a reported league trip to Leeds United later in the schedule - the left side of United’s team could become the storyline that defines their opening months.