T-type management refers to the free sharing of knowledge (the horizontal part of T) within an organization, while focusing on the improvement of the performance of a single business unit (the vertical part of T). T-type management learns across business units, shares resources, and communicates ideas. To create horizontal value (horizontal part of T), and at the same time, through the close cooperation of each business unit, the performance of a single business unit (the vertical part of T) is well developed. According to the above definition, Which of the following items do not use the T-type management method or use the wrong one (). ['A TV production company often sends business managers to learn advanced management experience, and the management level of managers has been greatly improved, which directly promotes the improvement of business economic benefits.', 'Zhang is a branch manager of a large supermarket chain. He recklessly learned from other branches the experience of purchasing and inventory arrangement, which reduced the inventory of the stores he managed by 20% and increased sales by 10%.', 'When Wang was newly appointed as the head of a food production enterprise department, because he knew little about the business of food storage, he deliberately seconded several colleagues from other departments to help him develop perfect rules and regulations on food storage.', "An enterprise often calls sales personnel to hold experience exchange meetings. At the exchange meetings, everyone introduced their successful sales experience and methods. After each exchange meeting, everyone's sales performance will be improved."]