What staffing problems? Last time I checked, this industry has about 4,000 extremely highly experienced furloughed pilots, with multiple type ratings in A-320s, 737s, and others. That's enough to start an airline the size of CAL, UAL, or US Airways.
Read the whole story... RyanAir has never experienced a shortage of pilots in their 23 year history. Period. How many similar articles have predicted pilot shortages in the past 23 years?