The smaller insurer plans to make the necessary investments to ensure the deal is successful, he added. The DOJ has argued that Aetna and Humana's divestiture proposal isn't enough to fix the anticompetitive threat of their deal, saying smaller plans lack the critical star ratings and branding necessary to succeed. But Aetna CEO Mark Bertolini has said the company is "confident in Molina's ability to deliver continued access to quality care for our members in these areas," FierceHealthPayer reported.