Remain calm....Do.not.PANIC. Total of twelve linemen are on the roster without Lewis and three FR coming in the fall for a total of 15. Plus, there guys on the DL who could move in a real pinch. Typical college roster carries 15-18 OL; for example: FLA had only three healthy OL this spring and will have 16 total in the fall. CU is in line with that.
Now that the OL does not have to spend a full second trying to figure out complex NFL blocking calls and schemes, they should be able to read and react much faster than Water Bottle's schemes allowed.
I think people will be amazed at how much MM's simplification will help the entire offense. In spring scrimmages I attended, there were virtually no OL penalties, even with guys learning a new system. Another thing I learned, listening to comments made by Neuheisal in a pre-spring game interview: Rick observed that in MM's practices, the players were running three plays in the same time his team's practices would have run one play! No standing/fooling around. This effectively give all players that many more reps to learn the MM system. If Rick was impressed, then maybe we can be, too.