It not easy to generalize on decathlon training without knowing the athletes you are trying to help, but here are my immediate comments:
DEFINING THE PROBLEM:
Your program is too extensive and too demanding:
-hurdles 2 times a week
-plyometrics 4 times a week
-pole vault, highj ump and long jump 5 times a week
-weights 2 times a week
...and then we havent even started with the really important part of your training program: RUNNING.
You will not get better by practicing a discipline multiple times a week. The most important is that you get rest in between the most important sessions(speed-jumping). In my opinion its not possible, and certainly no point in "getting through" all the 10 disciplines in a week. Your goal should be to practise all 10 over a two week period. Then you have enough breathing space to recover and be ready to make good running(speed) sessions.
Your can practise the throws more often cos they are not so demanding.
Best of Luck