If I could perhaps create one app, it would be in the realm Hudl. This is a basketball site primarily which allows you to upload video, scout, instruct and teach various segments within the teams dynamics. My passion is basketball, so my app would consist of a platform which allows you to socially connect with other coaches and teams. Programs often time have to exchange film with one another. Creating a situation where we can all go to the same site and just make available the games the teams are interested in. This transaction done through this application of quick uploading would cut down lots of time. An offer teams the quick exchange their looking for.
The second app I would create would fall in line with an athletes agents app. You could sign up for this service, and get all the contact information of various agents around the world in sports. A lot of times athletes don't know how to get involved with professional sports. This app would be a useful tool in helping the college graduate locate a useful agent. Also there are so many bad agents, by allowing this app to review the agents by former players or colleagues. It keeps the agents involved accountable for their actions.