Brand is not a guarantee for anything today. Product series are traded between companies, or whole companies are being sold/bought. Company A buys B and switche

Brand is not a guarantee for anything today. Product series are traded between companies, or whole companies are being sold/bought. Company A buys B and switches B's products to their own brand while continuing with B's quality, or continues with B's brand while selling traditionally A's products or degrading/improving B's to their own interpretation of quality...