Unfortunately, it's gonna be manually looking your self to get the best players...other than that their is a huge amount of luck involved when using your scouts...
Having alot of scouts is good but whats better is having alot of worldwide knowledge... so always sign scouts that have different areas of knowledge...
Also this might help...(REGEN DATES, AFTER THE DATE HAVE A LOOK AT TEAMS WITH BETTER FACILITIES)
03.03(Mar) - Mexico
08.03(Mar) - Australia, Croatia, France, Germany, Greece, Hungary, Israel, N. Ireland, Russia, Scotland, Switzerland, Turkey, Ukraine, Wales
13.03(Mar) - Austria, England
17.03(Mar) - Slovakia
18.03(Mar) - Belgium, Czech Republic, Denmark, Indonesia, Italy, Poland, Portugal
19.03(Mar) - Bulgaria, Romania, Slovenia
25.03(Mar) - Holland
28.03(Mar) - Serbia, Spain
02.04(Apr) - Argentina, India, South Africa
19.04(Apr) - Hong Kong, Uruguay
19.08(Aug) - Sweden
02.09(Sep) - Malaysia
14.09(Sep) - South Korea
19.09(Sep) - Chile
20.09(Sep) - Brazil, Ireland
23.09(Sep) - Iceland
25.09(Sep) - Finland
28.09(Sep) - Colombia, Singapore
08.10(Oct) - China, Norway
16.10(Oct) - Peru
02.11(Nov) - Belarus