This week, Danone announced it was forming a new division for its operations in Africa and keeping its medical nutrition arm, which had been the subject of takeover speculation. Tesco issued yet another profit warning, but CEO Dave Lewis is convinced the company is taking the right steps for the future and outlined changes to the way the retailer will do business with suppliers. Elsewhere, Kellogg remained coy over union claims it was mulling the closure of two cereal plants in the US. Here is the week in quotes.