ベテラン (translations)→ experienced old veteran
幹部 (translations)→ cadre juice management officer type
主要 (translations)→ influential lead main primary prime
上級 (translations)→ advanced upper
大物 (translations)→ big-time biggie figure great high leader major prince something whopper
年配の (translations)→ ageing elderly established older
有力 (translations)→ important leading mighty powerful prevalence responsible