What were your big mistakes?

Can't find a thread for this, so I created one. I play wigan now in 2023

I'll start. My biggest would probably Buying Lewandowski for 80m and selling for 50m, he was awful in the 1st season, he just got 15 goals for 50 games (7.10 avg).. In the 2nd season, he almost double his production, 28 goals in 46 matches (7.44 avg).. In the two seasons, though he is just a DLF(S), i still dont get what i want to him, he only have like 20 assists in two seasons.

I was so fed up, so right after the 1st game (he was MOTM, 2 goals) in the 3rd season, i sold him to RM for 50m.. Then he just went freaking nuts, in 3 seasons in RM, he was scoring 40 goals in all competition. Avg like 8.10+ ...scumbag lewandowski..LOL...

Also, i had a 165m english poacher, he was 5 star, bought him for 3m, didnt play him as i have 2 great strikers, only play one. I loaned him out the 1st season, then sell him for 50m the next to RM(yeah, i help RM a lot in this game)..he then scores 30+ a season... Also, i tried fmscout (1st time), to see who what fmscout can do, and i saw this poachers potential ability was 199..damn..and he got consistency and important match 15+.. i was trying to buy him back, but RM wants 200m..LOL