Are you sitting down Dub09?? I agree with a lot of what you are saying here. Existing officials should be doing their jobs and should be continuously passing on info to the ref. They are "wired up" and can immediately pass on info. However, technically, the ref cannot award a free based on their information (not saying it doesn't happen!!) but can issue whatever cards deemed appropriate.
Are Croke Park rigid in their instructions to referees to clamp down on all foul play? If you watch any match you will lose count of how many "soft frees" are completely overlooked by the refs and these "soft frees" are getting "harder" and more physical by the day and are still not being penalised. Is it no wonder that the club player is disillusioned every week when penalised for these frees and they see the inter-county players constantly getting away with it. Almost like there are two separate rule books out there!!!
Are there more officials required? I don't think so, there are enough around to see most of what happens on the pitch - if only they would act on it. Giving them more power is a completely different story.
Video evidence - for post match discipline - in my view, the more the better and it might reduce some of the thuggish behaviour.
TMO - The facilities are available in the bigger stadia, so why not use it for important decisions. You have a 4th official whose only function is to record the subs and monitor the mentors. Why not use him??