Via Orlando, here is an interesting article about the 4 people BOOM hired from ARBO. The article names Magdalena Zander, Corina Ciocan and Gabriel Boaca and has no details about the 4th person.
Since Gabriel Boaca will start his job in two weeks, my guess is that he is the 4th person arriving at Boom.
The three people I saw these days over there were Magda, Corina and… Claudiu Gamulescu* 🙂
* tip for AdPlayers