The coach is baffled and tired. There is surprisingly little disagreement when it comes to the necessity of team chemistry. It is clearly a cornerstone of success. But winning coaches will tell you that the chemistry comes first. Learning to love and respect each other as people and athletes is usually a precondition of success.
Great athletes can sometimes form a winning team even when rancor abounds.
The Chicago Bears come to mind. But in most of the sports world the athletic talent tends to be pretty even within a particular competitive level. And the edge the winning teams have is often in how they mesh rather than in how high they jump or how fast they move. Let's appreciate good chemistry when we see it. Like in a good marriage, the easy-going relationship and cooperation we see are usually the result of a lot of selfless behavior and mutual respect.