Don't look at prizes, just maximum yard/ball each time.
Used the extra yard coach instead of the league coach to ensure final buildings.
Not saying that it's impossible to reach silver, I've done it regularly in other events just that the top teir was always reserved for diamond spenders and realistically with the coaches this time silver will also mainly be for diamond spenders too
OK therefore your goal was only the Olympic Treasury and it is good that you achieved that goal but I can’t understand why you opted for the Gold players and the Extra Yard Coach.
The Gold Players cost more footballs per yard therefore they give less yards per football.
The Extra Yard Coach only adds 1 yard per play whilst the League Coach doubles the yards per play in the League Table thereby giving a good possibility of placing in Silver or even Gold which will add either 1 or 2 Upgrades.
Using cheaper players gives more plays and yards for the same amount of footballs thereby doing more Touchdowns, with cheaper players the Extra Yard Coach would have been more efficient because if you get more plays you get more yards.
As an example let us assume that we have 10,000 footballs and compare the Gold Players with the Other Players.
First scenario – Gold Players
The average cost is 103 footballs
The average yards is 7 yards
The average Cost per Yard is 14.76 footballs
Number of plays 10,000 / 103 = 97 plays
Using the Extra Yard Coach we get
Total yards 97 * 7 = 679 yards plus 97 extra yards = 776 total yards
Points gained in the League Table = 776 points
Using the League Coach we get
Total yards 97 * 7 = 679 yards
Points gained in the League Table = 679 * 2 = 1,358 points
Second scenario – Other Players
The average cost is 46 footballs
The average yards is 4 yards
The average Cost per Yard is 11.50 footballs.
Number of plays 10,000 / 46 = 217 plays
Using the Extra Yard Coach we get
Total yards 217 * 4 = 868 yards plus 217 extra yards = 1,085 total yards
Points gained in the League Table = 1,085 points
Using the League Coach we get
Total yards 217 * 4 = 868 yards
Points gained in the League Table = 868 * 2 = 1,736
The difference between the Gold Players and Other Players is substantial even if you wanted to keep the Extra Yard Coach but as you can see the League Coach offers a better possibility for a better placing in the League Table.