"Without Baerbock, Habeck would be nothing, or, as ex-Green Party leader Claudia Roth puts it: "Annalena is the root of our tree. Many a Robert blossom would quickly wither without her." While Annalena Baerbock works inwardly, Robert Habeck can shine outwardly. The party may owe its soaring success to Habeck, but the fact that it hasn't stopped is primarily thanks to Baerbock."
from the article: "Annalena Baerbock und Robert Habeck: Sie ist der Boss" from DER SPIEGEL 22/2019 (Spiegel + article)
(PS : If anyone want the article I can share it if you guys want via PM ;) )