The Packers released three players last week, two of whom are somewhat interesting.
LB Jamon Johnson, who the Packers gave the 2nd most guaranteed $ as a UDFA last year, was one. It was reported that he was released with a "non-football injury" designation.
CB Tyron Herring was the other. While he was just a practice squad guy, this leaves only five true CBs on the roster. Bo Melton is listed as a CB, but he has yet to play a snap on defense. Last year they went into camp with 9 CBs, so they will likely bring in at least three between draft picks and UDFAs.
Could also mean that they plan on investing a somewhat high pick at WR, and Melton is going to move to CB for good, leaving the WR room as Watson/Golden/Reed/Williams/draft pick/Moore. A somewhat high pick at WR would help keep Moore's offensive snap count % down, making it less likely that he cancels out the comp pick for Rasheed Walker.