"There are five things generally accepted to be necessary to make a footballer: skill, strength, stamina, speed and flexibility. You have to bear these factors in mind when you are putting together your training programme. The whole scene is a stamina test, a marathon race. Strength has to be developed from the start. You build that up, giving the player a higher resistance to things. Skill comes next, developed with a constant repetition of pattern. Speed comes after you've run them in. Then you start to get them stretching out. Flexibility is important, and we probably suffer in this country because of our climate. It's a well-known fact that players performing in warmer climates have a wider range of movements."
Bob Paisley details what a footballer needs