I do get what you mean.
Although Raheem Stirling was a "good" player with potential to get better before moving to Citeh and while I still think he is very wasteful at times, he has improved himself and his team a helluva lot since his move from Liverpool.
Riyad Mahrez is another who has improved Citeh.
Grealish is one of the brighter young lights of the EPL right now no doubt and if MC continue to snap up the best players ahead of their rivals the better their chances of success.