Scouts are not a guarantee.. u know that? LOL
well for me are good near the 90%... but with your team can be interesting buy 1 scout and greens to train the young players that have 18 to 22 years... or 1 or 2 of these...
too if you have a interesting academy player, is an option, coz is fast trainer and usually (in my case) are very effective and loyal, do a good job.