Jerman had entered training camp working with the first-team offense, but Coach Dave Wannstedt said Whitley had made great strides in the last week and deserved some work with the first unit.
The two will continue to alternate throughout the week, and Wannstedt said he would decide on Friday on they would be used in the preseason opener, scheduled for Saturday night against Jacksonville.
In fact, Wannstedt said all personnel decisions concerning Saturday's game would be made on Friday.
Wannstedt also told the media on Monday he no longer would discuss the status of injured players beyond what the league requires of teams.
The NFL mandates that each team categorize its injured players as out, doubtful, questionable or probable every week, but several teams -- most notably New England -- haven't been very forthcoming when it comes to injuries.
In other news Monday:
-- The Dolphins are still said to be interested in looking at longtime Green Bay wide receiver Antonio Freeman, but nothing had developed as of Monday.
-- Fullback Rob Konrad missed the afternoon session, but Wannstedt declined to reveal the reason.
-- Zach Thomas was activated off the physically unable to perform list on Monday, but he will be limited to one practice a day this week. Don't look for him to play against Jacksonville.