The formation and tactics Roy Hodgson uses will be key to how successful England are at Euro 2016 this summer.
He will need to find the combination that gets the best from his stars, which leads to one of his key decisions. What sort of role with Wayne Rooney have in the England squad? If he has a role to play at all.
A lot of talk building up to Euro 2016 has been surrounding Rooney's international future and whether or not he should go to France, especially with the likes of Jamie Vardy and Harry Kane setting the Premier League alight this season.
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As Rooney is Hodgson's captain, it's widely anticipated that he will play some part in Euro 2016, but whether it's a starting role is yet to be revealed.
Here we look at four different formations that Hodgson may use.
Rooney and Kane up top (4-4-2)
The role of Rooney will be interesting to analyse in the Euros. He has had a disappointing domestic campaign with Manchester United, which may have an effect on his form this summer.
In this formation, he's partnered up top with Tottenham striker Harry Kane in a 4-4-2 formation. Although this is widely considered as an outdated formation, it gives Hodgson the opportunity to play both Rooney, who has the experience, and Kane, who has been lethal in front of goal all season.
However, this would see no starting spot for Vardy, unless he's pushed to a wide position in the midfield.
Rooney in midfield, Kane up top (4-2-3-1)
A second possible formation could see Kane lead the line and Rooney drop back into midfield.
This would give a more dynamic approach to the midfield, and leave Kane as the target man, the role he plays perfectly at Spurs.
Adam Lallana could come in and give an alternate option on the wing, with Ross Barkley let loose in the no.10 role.
It's often spoken how Rooney may turn more into a midfielder given his age, so this could be the perfect opportunity to introduce him properly to the role.
Rooney in midfield, Kane joined by two wingers (4-3-3)
Hodgson may go for a 4-3-3 with Kane supported by two of Ross Barkley, Adam Lallana or Raheem Sterling.
The 4-3-3 is a popular formation within English football as it provides width and attacking threat, but it doesn't leave the midfield exposed to counters.
Rooney would sit in the middle and distribute the ball, leaving the goalscoring to in-form Kane.
Hodgson could decide to use Rooney as an impact sub.
If that's the case, then Hodgson could employ a 4-4-1-1, with Ross Barkley playing a pivotal role.
Spurs duo Eric Dier and Dele Alli may form an impressive midfield partnership and Daniel Sturridge could be used on the right to give the side extra width.
There's no doubt that the Rooney debate will go on right up until England's first game of Euro 2016, but it would still come as a massive surprise to many if he's not included at all.
How would you use Wayne Rooney at the Euros? Or would you leave him at home? Have YOUR say in the comment section below!