Subjects

Perhaps the simplest way to continue a paragraph, is to give more information about your opening sentence assertion. Notice that you don't need any linking devices between first and second sentences. In your second sentence, simply develop the opening comment.

Giving responsibility to work teams limits the division of labour. Workers are trained to do a wide range of tasks so they can be moved around as the need arises.

Workers need a broad range of skills to see the manufacturing process as a whole. The investment in training therefore has to be much higher that in traditional systems.

The essence of lean manufacturing is the creation of an extremely fragile manufacturing system that can be disrupted by any worker. Stocks are kept at an extremely low level and any worker can bring the production line to a stop if he sees a problem.