6:00 am, Iīm wide awake, so what the heck...
I think CelticBrit (and the others) already gave you some excellent advices.
I was never good enough, nor did I ever coach a team, but I am (was) an obsessive fan with friends who played at the professional level and coached professional youth teams, so take it for what it`s worth.
I will give you some basic advices, things that are common soccer knowledge in my country, as I think those will help more than any specific advice.
1. Stamina is crucial, but it`s also important
how your guys get their stamina. I suggest you think about ways how
every drill includes the ball. Time not spent with the ball is lost time. Still, itīs always good to have guys who
want to run.
2. Control - Look - Pass, the mantra of a good soccer player. Seriously, this is the absolute basic drill, and it can`t be stressed enough how important it is. If they`re not good enough to control the ball and pass properly, then they`re not soccer players, and if they`re good enough, then they have to learn to do it faster. You can never do too much drills that base on these basic skills.
3. I suggest you run a lot of 3 vs 5 or 2 vs 4 drills.
5 players in a circle pass the ball to each other, 3 players in the circle try to get the ball. If one of the 3 guys gets the ball, he joins the circle, and the circle-player who lost the ball has to chase the ball now. You train control, passing and one-on-ones at the same time. Btw, the number of circle-players and ballchasers directly determines how hard certain aspects of the drill are, so it`s a good idea to mix it up with the numbers from time to time, depending on what you want to focus on. Absolute basic (and fun) drill, too.
4. My favourite, the pendulum.
Hang the ball just over the heads of your players, and let them train headers like there`s no tomorrow. Let them learn to shoot the ball with the head. Standing, running, diving...whatever. If somebody tells you this isn`t a modern drill, he doesn`t know what he`s talking about. This is such a simple yet crucial drill, itīs ridiculous. Itīs a solo drill, though, so it might be wiser to offer this as an extra after the actual training.
5. Tacklings...and Iīm not talking about the wussy tacklings you see at the pro level nowadays, where itīs all business and nobody wants to get hurt. Diving (or Sliding?) Tacklings are the most underrated and single most important skill at lower levels. Itīs nice to have wonderful ideas of how you want your guys to play...fast, short passes, pressing and forechecking all sound wonderful on paper, but itīs not what wins you games on the lower levels, normally. Trust me, a hard-nosed defender with a proper diving tackle strikes fear in the eyes of your opponents and makes life so much easier for the whole team.
Finally, I suggest you watch games of the greek national team. Iīm biased, but I think their coach is a force of nature when it comes to basics. Itīs really ugly soccer, almost ancient compared to the modern style, but itīs enough to win the Euro with a "sub-average" team like Greece.
I hope there was something you can use, keep us updated on how you do with the team.