Transport management and testing

Quality is not just testing although this is a common superstition. In the teams that i come across, when people talk of product quality, the most common aspect they kind of communicate is clearly that we need to test more. The average age of the team is about 5 years, the guys have done a lots of projects together then why is this a common understanding?

Are the other practices effective even if being followed? How frequently have we seen a development team say that pair programming and test driven development effective and informative? For sure, i have not yet seen one such team atleast till now. Have we ever wondered how much of defects get delivered to customer which could have been found locally? Have you seen how frequent are your transport releases and at which points do they come?

Without these, can a lean practice be called lean?