How'd our current boxing trainers rank if they didn't've access to opponents tapes?

[Dedication]

Never really thought about this until today.

How would our current stock of trainers rank if they didn't have access to tapes of opponents their boxers were facing? Essentially they have no clue what to prepare for.

Who has the most tools to get their fighter to pull out the win?

Here's a list of our current top stock:

Freddie Roach
Nacho Beristain
Emanuel Steward
Roger Mayweather
Robert Garcia
Nazeem Ricardson
Virgil Hunter
Rob McCracken
Joel Diaz
Gabriel Sarmiento

Poll added.