Inspect a custom made plugin for wordpress and add functionalities to it

Hello. We'd like you to check a custom plugin developed by another freelancer, its functionality is to order posts according to the date of the event. You can see the functionality of the plugin here : [login to view URL] We can place this Matches-List in any page we want, just by adding a short code. We can give this short-code a value to just display a determined league instead of all events. As you can see here : [login to view URL] What we want you to do is the following: - Add the functionality of sorting games by team Id. - Add the option to sort games per week so we are able to display all events that took place in the current week. As this site does in here : [login to view URL] - Make the posts to add the Match-ID in the permalink structure so they have unique URL We have great plans for this website but we lack a good web development team to work alongside, so we're really looking forward to know you better and discuss many more upgrades and tasks. Please be sure we can go in depth technical details of this task if you're open to accept the job. Thanks for your time.