So if Harbaugh is indeed introduced next week, a big question for Michigan uniform mavens concerns whether #4 will re-introduce the helmet decals. Bo actually invented the concept while at Miami, and brought them to Ann Arbor in 1969. Here’s a brief run down of the stickers over the years thanks to Dr. Sap: You’ll note above that the decals actually took a break in the mid-1980s during Harbaugh’s tenure, but did indeed return for his final two seasons, including his captaincy in 1986. We also know that Coach Harbaugh used them in Palo Alto: Coach Hoke was asked about this by Wojo back in 2011 and obviously nothing happened, but with Harbaugh? You’d have to think there’s a good chance we’ll see them on the field in 2015. What do you think? [poll id=”72”] Update: Amani Toomer chimes in with authority: Related: Harbaugh’s Top 5 games while at Michigan The full U-M uniform timeline can be found here. Follow MVictors on Twitter