if he is that bad why did Palace renew his contract ??
Crystal Palace:
On 3 August 2015, Wickham joined Crystal Palace on a five-year deal for an undisclosed fee, £7 million /rising to a potential £9 million depending upon his performance.
Wickham made his debut on 8 August 2015 as a second-half substitute in the 3–1 win at Norwich City.
In November 2016, Wickham sustained a serious knee injury which kept him out of first-team action until October 2018. ( almost two years out )
He did not make an appearance in the starting line-up until January 2019 , scored in a 2–0 fourth-round FA Cup win against Spur.
May 2019, Wickham signed a one-year extension to his existing contract keeping him at Palace until June 2021
Worth a punt, think he is a improvement on Bogle and Madine if you consider is overall career path
https://en.wikipedia.org/wiki/Connor_Wickham??