#4 Transfer policy

Eden Hazard was a much-mooted target in the summer.
He has since done very well for Chelsea, who are performing better than expected in the English Premier League under new manager Maurizio Sarri.
All acknowledge Hazard's talents, and the Whites need renewal. Hazard has stated he wishes to play for Real Madrid, and a move may occur sooner rather than later.
However, the club had the opportunity in the summer to sign him, yet they hesitated and didn't get much business done. At least nowhere near that of recent times. Their most expensive signing was Vinicius Junior from Brazil, and most high profile Hazard's former teammate and compatriot Courtois.
Is it the new stadium plans hampering them? Possibly. But fingers would be pointed at the President, Senor Perez, considering the relative dearth of big names.