1 in the first half, 4 in the second. All descriptions are approximate because I only had the reply on BTN and can't rewind (I didn't DVR). Admittedly some of these are asking for good/great plays.
Play, the first. Michigan is in field goal range in Ohio's end in the first quarter. Gardner drops back and is sacked by A. Washington. The true freshman went right around Taylor Lewan for a sack/fumble. Result: 3 potential points lost.
Play, the second. Michigan near mid-field on the first drive of the second half. This is the The Play of The Game. 4th and 3. Gardner leaves the field and Denard comes in. It's described as "Borges ran it straight up the middle into a stacked front!". I don't think that's true, but even if it is, this play is there. All blocks are made except one - our best OL Taylor Lewan whifs on a simple downblock on and undersized Sabino, and he makes the tackle. If he even occupies him, Denard has the first easily, and likely a lot more. Result: field position and momentum lost.
Play, the third. Gallon deep ball / post. Either Borges calls a play that occupies the safety, or he's horribly out of position, but Gallon is by him as he continues through the catch. The cornerback he'd already beaten lunges for a shoestring tackle and makes it. Pick up your feet or run through those arms/hands and it's six points. Denard will fumble on the next play. Result: loss of 6 points.
Play, the fourth. Last drive. Gardner does an outstanding job of avoiding another strong rush, runs for 8/9 yards on first down. Play is called back for holding. Result: 1st and 20 instead of 2nd and 1/2 near midfield.
Play, the fifth. Gardner again with an outstanding scramble, rolls to his left, and throws to a covered Funchess. Given man coverage on that side of the field, he could have kept and picked up at least 10 yards. Maybe significantly more. Result: 2nd and 20 instead of 2nd and 10, potential big play/momentum lost.
This was a close game. Watch again tonight on BTN if you can stomach it. Not excusing Borges because I believe he failed in several ways, but there were plays to be made in the second half.