Tandy Corp duly announced that it was placing all major account and federal marketing under management of its Grid Systems Corp acquisition, and aims to increase greatly the ability of Grid to service its customers on a national basis. At the same time it plans to focus its Radio Shack Computer Centers on its traditional stronghold of general business, home office, professional and educational markets, and will assign systems engineers to each centre. Grid will take over 61 sales, support and service centres US-wide, leaving Radio Shack with nearly 300 of its Computer Centers.