Acceleration

Crucial for wingers and short, fast strikers, who will try to break the offside trap. A central defender can also benefit. For a striker, couple it with off the ball. For a defender, you just need one in your starting 11,  to clean dangerous situations once the offside trap is broken. If you don't have one, consider using a sweeper.

Agility

Agility is a must for 1st-division attacking players

Balance

Attacking midfielders (central or wingers) and strikers will benefit from this one

Jumping

Couple it with heading for a DC or a striker

Pace

Pace should be coupled with agillity and flair, and, mostly, acceleration. Personally i consider acceleration much more important, as in most cases your players will have to spring for 10-15 meters at most, thus not be able to reach top speed.Have your fastest players run from deep.

Stamina

See what faces Manchester United this year, conceding lots of goals after the 75th minute? Crucial for wingers, who get a lot of forward runs, and DMs

Strength

Tackling, Jumping and Marking are combined with Strength for a player who can push the opponent out of the ball possession. Very important for a target man as well