Jefferson told Seifert what many of us were concerned about this spring and summer — that having the Murray and QB J.J. McCarthy split first-team reps “was an added challenge.” At the Vikings’ joint practice against the Ravens on Wednesday, Jefferson beat a double team for a touchdown, “but had roughly a half dozen passes broken up as he tried to muscle for position.” Jefferson should still be treated as a WR1, but as he told Seifert, “work needs to be done.”