WWTR1 and cancer: From all these findings, including the fact that double KO of YAP/TAZ leads to stronger biological effects than simple YAP absence [32], YAP and TAZ do not always have redundant roles, and the role of TAZ should be revised and better elucidated, although YAP is currently considered the “predominant twin” and shows growing attention as the main target for new therapeutic strategies in cancer diseases.