Media Empire and Baseball Control
Watanabe power over NPB was rooted in the Yomiuri Group, Japan largest media conglomerate controlling the nation top newspaper and a major TV network.
Commissioner Manipulation
Watanabe influence was most visible in his ability to shape commissioner appointments and undermine the office independence.
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Free Agency Exploitation
The Giants used free agency aggressively to poach star players from rival teams, with Watanabe blocking reforms that would limit this advantage.
Legacy and Remaining Issues
Even after Watanabe formal departure, NPB governance structures remain vulnerable to concentrated power from parent companies.
Books on NPB power dynamics are informative