Took the quote from inter final and the answer is no, he/she can ask anyone. In fact it is so tight now at majority of games that a lot of refs after 20-30 phone calls dozens of texts etc with no response just arrive at the venue and get going with 4 lads who happen to be there. Amazing the amount of times theres 1 club member at each end from teams playing acting as umpires along with a neutral but its just not discussed, probably for the better.
For spectators it looks like the game is well presented but at least 75% of finals are a last minute rushed job to find anyone willing to wear a white coat.
The senior finals I believe are the only ones where linesmen are appointed (at least it used to be like that). All refs are asked to get neutral bodies to assist in finals and in fairness the teams involved deserve it.
Alas the level of appreciation from pretty much all areas where extra officials are required is non existent and I put this down to many things but mainly the sheer volume of games every weekend in the county. Even at this late stage in the year. Theres a race to get the games done at any cost.
In essence, take up the Whistle yourself and be part of the solution!