The most interesting information I can have about a competitor is the cost.
It's best to know what the enemy are saying.
I'm not really into researching my opponents or other fighters other than the ones that I like.
Only way to eliminate the element of surprise is to know yourself and now your adversary.
I read, every day, the 'Wall Street Journal''s editorials because I like to think how my smart enemy thinks.
Knowing your opponent is fundamental. Because then you can know their characteristics better.
Historically, it is important to try to understand your adversary in order to figure out how they are thinking, what they will be doing, how they will react.
Many people, including those from the BWF, don't really understand what the main problems in badminton are and what it most needs because many officials are not competitors.