Your team is good. The calendar is the constraint.
That is a load problem, not a capability problem.
A fully committed development function does not have a talent gap. It has a queue, and everything new joins the back of it.
We run the work in parallel, outside your calendar, and it arrives at your approval chain already checked. The fact that we sit outside the organization is the mechanism rather than a compromise. Your team keeps the standard, the brand and the final call. What changes is how many finished options they get to choose between, and when.
Adding someone inside the queueadds to the queue.
A new internal hire inherits the same calendar, the same approval sequence and the same competing priorities on day one, plus a ramp. If the constraint were capability that would be the right move. The honest test: if a concept were fully specified and checked tomorrow, how long until it could actually be approved? If that number is still long, more capacity inside will not shorten it.
Where the months actually go
None of these are anyone doing a bad job. They are what a busy, functioning organization looks like from the inside, which is why they are so hard to argue with in a budget meeting.
The slot, not the work
The development itself takes weeks. Getting on the calendar to present it, then getting the follow-up session after the first round of notes, takes months. The work is rarely what is slow.
The tasting that moves three times
Every reschedule costs more than the day it moves. Product gets re-sourced, prep gets re-run, and the people who were aligned in the first session have moved on to the next priority.
Approval that is a calendar, not a decision
Nobody is against it. It needs finance, legal, brand, supply and operations, and those five are never free in the same fortnight. The concept is not being rejected, it is waiting.
The reset when a priority changes
A quarter turns, something else becomes urgent, and a concept that was two sessions from done goes back in the queue at the position it left.
This is a diagnosis, not a pitch
Every failure named above is one we have lived through from the inside, running an internal development function at scale for over a decade. The concept that dies waiting for a slot. The tasting rescheduled three times. The approval that turns out to be a calendar rather than a decision.
Which is also why this is built to make an internal team look good rather than to replace one. In practice the person who champions this is usually the head of the function, because they can see the backlog clearly and cannot manufacture more weeks.