Perlini received the same chances Strome got, or do you not recall that he started off in the AHL, and started to light fire with scoring there, same as Strome? He was brought up, he bought in for that year, and it continued for the remainder of the year. At that point, he was "in" the NHL, but maybe that is a problem for some of the players - they have a honeymoon period where by making it, that's it and they are guaranteed time and a roster spot for the next 4-12 years.
Sometimes, that is a bigger target on the back, though. The same way that an employee who gets a pay raise at work is also going to be the first one severed from a company if their work is of a similar quality to the people who are paid 10% less than that same employee.