The procedure, as I understand it, in the Western church (IOW, the Latin Rite, not the Byzantine Rite churches) is supposed to be:
Apparently PF has seen fit to circumvent this process in some cases.
Whats the difference between a bishop and an archbishop?
An archbishop is the bishop of a "metropolitan see," which has lesser dependent sees called "suffragans". A metropolitan see generally belongs to a major city where a lot of Catholics live ... St. Louis, Philadelphia, etc.
And how do some bishops or archbishops get designated as cardinals in the church?
The Pope appoints them. Some sees generally are expected to have their bishops raised to the rank of Cardinal, e.g., it was considered odd and irregular when PF did not name Chaput of Philly a cardinal but did name Bad Tobin of Newark one. Newark has not traditionally been a cardinalatial see, while Philly has been.
Is there a systematic problem with how people are recruited and promoted in the church?
Before we go there, I think we need to address the issue that PF is apparently circumventing the system put in place and developed over centuries, in order to put his allies in positions of power, especially in the College of Cardinals.
Thank you so much for this information.