Michael was a fool to accept them with an open arms.
The moment they transferred to his company, the whole public knew and accused the McGarden corporation of slandering and poaching of workers from different company.
Michael did not care. He went ahead and offered twice of their salary with performance bonus, but he forgot to ask their specialty.
Most developers Raven introduced are good at making software programs, not developing mobile phones.
Realizing this, Michael was angered and started to cause trouble in Raven's company by constantly paying them a visit to annoy them. He got tired of it eventually, so he let his wife and son to do it.
Raven can predict his brother's foolish way of thinking and decided not to bother with him. What was the use of fighting a clueless pawn? The Master behind it is the person he was paying attention to.