That's one explanation for retention bonuses. However, considering the economic climate of the last 3 years versus PTSC's proven ability to dispense bonuses to those not deserving of them, I'm not sure retention bonuses were as needed as one might think.
Also, IF PDSG is NOT the primary focus for revenue generation moving forward, one needs to ask why the infamous pie chart suggesting otherwise remains on the website. PTSC is the champion of contradicting itself.