Ryu Ga Gotoku Ishin dev diaries have started up over on the official Ishin website with the four dev team leads:

• Director Hiroyuki Sakamoto
• Adventure mode chief Horii Ryosuke
• Battle system design chief Hirasawa Nobuyuki
• Sound production chief Hidenori Shoji

If we can get an english translation I’ll be happy to post them but this is a great look in to the development of a Yakuza title!