bookmarks is a good idea, but not very nice to use because of poor informations in the bookmark page.
Example : i put 5 players in bookmark, 2 days after, when i come in bookmark page, il can just see the player name, no other information, so i must click on each to search what i want (and sometimes i don't remember me why i bookmark this player or this team...)
Same thing when we put in bookmark some players to supervise them in order to buy one of them... not easy, the bookmark give no information, and no resume of players.
So i think that bookmarks win in interest and easy use if we can see in bookmark page, a board with major informations about player (age, position, club, sell price, end date of sell, ....). same thing for team, staff and match, bookmark can present a resume of them, what help to better and fastly use bookmark.
alone to think that ?