Every guide written in the last three or four years is flawed....every site, every forum, every blogger has only partially correct info...if you follow any of those to the letter, you will win some, and lose some games...everybody is writing about all possibilities you have, but nobody will tell you what perfect instructions and roles are...which may lead you on the wrong track. IMHO, you have two options. First, buy football books and try to learn from them, might be more accurate, I'm not really sure, and second, try everything you read from those flawed guides ingame, which is very time consuming, and dependant on accuracy of games match engine, but you will eventually filter out the bullshit and learn what proper settings are. Took me almost 4 years for that. Have fun!