Crystal Palace can count on continued improvement if it keeps adding pieces like this.
Most important, though, is that Palace have so far resisted all offers for Wilfried Zaha, and are said to be on the verge of two significant signings.
As noted in our rumor roundup, Multiple reports say that Max Meyer will join on a free transfer from Schalke.
Kouyate, 28, also deputized at center back last season, and has made 147 appearances for West Ham since 2014. Kouyate has 15 goals and 10 assists with West Ham, and also 51 caps for Senegal.
Palace is good money to improve their standing this season, especially if Zaha can stay healthy (The Eagles lost every match he missed last season).