All perfect praise be to Allah, The Lord of the worlds. I testify that there is none worthy of worship except Allah and that Muhammad is His slave and Messenger.
It is obvious that you are affected with Waswaas (obsessive doubts) about disbelief, and this is a very serious matter. So you have to ignore these doubts, repel them, and not pay any attention to them.
What that coach said is not disbelief; he only wanted to say that the team should be given priority so that the players make every effort in doing what they are required to do towards it, and this is what appears from his words, which do not include disbelief in any way.
In case you hear that of which you are certain that it is Kufr (disbelief), then you have to deny that if you are able to do so, and if you are unable, then you are not sinful.
If you remain silent while you are able to deny that, it is not disbelief, but it is a disobedience for which you bear sin.
As regards eating in a restaurant in which there are statues that are worshiped instead of Allah, then this is not disbelief as well, but it is not permissible for you to sit in places where other than Allah is worshiped while you are able to sit in other places.
So if you find restaurants that are free from these evils, you can eat in them, and if you do not find other places, then you are not sinful, Allah willing.
Allah knows best.