Actually it is a tactic focused on getting your lone striker to score some goals. Based on some pacey, direct football. The idea is to get your striker in an advantageous position in the front of the goal.
I chose the ”classic” 4-2-3-1 for my base formation, but when you are attacking it can transform in a 4-3-3.
To realise the transformation from the 4-2-3-1 to a 4-3-3 I used a Fluid team shape(I tried the Very Fluid set up but it ended up with my CB's playing in an offensive midfield position), and the team mentality to Attacking, this way they are focused on getting the ball forward as quickly as possible.
The player roles are set up in a way suitable for the mentality and the shape (at least that's what I think)
To instructions are based on keeping things as simple as you can, like More Direct Passing or Hitting Early Crosses.
Finally to wow you that this thing really worked here are some pictures:
Shane Long stats for Southampton, season 2016-2017:
Alexandre Lacazette stats for Ajax, season 2016-2017:
Beating Arsenal with 3 goals to none, with Long on the score-sheet two times:
And my Champions League run with Ajax, same season:
Of course, please DO NOT expect serious result from the first game, but if you have some fast wingers and a pacey striker you should give it a try...