Hi Mrs Boyle, I can give you my pespective, but I was diagnosed age 26 so it's obviously different for adults.
I started off taking 2 injections a day, (one was insulatard, one was Mistard 30) which was fine at first to get used to injecting, and also because I didn't need a lot of insulin because of the honeymoon period. However, once I got used to it I found it was ok for during the week at work, when I have a routine, but at weekend levels were terrible as I tended to have bigger meals and get up late. Also it was very difficult to get good control for special occasions like weddings or parties when you might eat late, or have a very large meal. If I didn't eat on time I had a hypo, then when I ate a large meal I was high and there was nothing I could do about it. Also I had to have supper before bed every night, which I hated.
So I changed to a basal bolus regime, where you take a background insulin ( I started with Lantus, then changed to Levemir) once or twice a day, and take a quick acting one at meal times (Novorapid for me). You learn to count carbohydrate content of foods and scale your quick acting insulin accordingly, so you can eat more or less and still control it. So it does mean more injections each day, which might bother a child, but I was happy to change as it gave me better control, fewer hypos and I could eat what I wanted to.
A lot of children are on pumps, which are even more flexible, I'm sure some parents will pop in to sing their praises!
There was a post a while ago where some long-term diabetics compared their childhoods to Bev's son's - try reading this
http://www.diabetessupport.co.uk/boards/showthread.php?t=7488&highlight=annoyed!
Hope that helps, keep asking questions. I think educating yourself about the different options is the best approach, then you can tell your team what you want and get the best for your son.
Best of luck!