FIFA 14

Go to Start Career < Player Manager

You can choose between using an existing pro (an actual player) or you can create a pro.
Select Existing pro. I picked Luis Suarez from Liverpool just as a personal preference but picking any big named players like Aguero, Robin van Persie or Rooney will do.

Now you can play or sim (to make it even quicker) the 3 pre season friendly games and then you will start the first league game where the achievement will begin. I prefered to control all of the squad because i could put more passes through to my pro for him to score.

In my first league game i scored a hat trick (three goals) and got subbed on 76mins and still got the achievement. The achievement will unlock after you advance past the present match day.

Hope this helps :)

The two solutions already up are very good, however I struggled to get this achievement, even with ratings of 9.9 and scoring tons of goals I still wasn't in the team of the week. So if anyone else had similar issues this is how I did it.

I picked to control Cristiano Ronaldo and simmed to the first league game of the season. Just to make it easier I put the difficulty on amateur and used the sliders to help me. Then go into the game controlling only Ronaldo, from there score a couple of goals and as long as you don't put a foot wrong after two goals you should have a rating of 10.0. If after two goals your rating is below this, just request a sub and try again next game. When you do get the rating of 10.0, be very careful with touching the pall, one misplaced pass and you lose it. I suggest either holding the ball in your half or simply hanging back out of play. Anyway once the clock reaches roughly 25-30 mins pause the game, on the tile which says matchfacts, use the right stick to move to the player ratings page, if it says N/A you need to play a little more, but if it says 10.0 simply request a sub and sim the rest of the game. Then simply sim to the next game and the achievement should pop!

I've got an even easier way of doing this.

Load up a game with a real person (I used Cristiano Ronaldo) and then sim to the first league game of the season. If you now go into 'Settings' and turn all the opponants stats down (i.e - Shot Accuracy to 0%) and turn your stats up (i.e - Shot Accuracy to 100%) you will find that this achievement is as easy as the Press START achievement from The Simpsons.

Using this method I managed to score 37 goals with Ronaldo in one game along with 10 assists as Real Madrid beat Getafe 51-0. Even if another play in the league plays out of his skin there is no way that they will be able to get a higher ranking than you as you've done so well.

Once the week is over your achievement will unlock. Below is a video using the same method for you to watch. All credit to the video goes to Cinity Gaming.