Although not having a lead guard like Jones forced Adams to play out of position as a point forward (essentially a lead guard) and likely threw his game into the uneven state we see. Having an actual lead guard, while not worth ten wins, would have slotted everyone including Adams into a more appropriate position, role, and rank in the pecking order.
Agreed. They did get Graham, but he wasn't supposed to play this year and looks like he forgot how to play basketball anyways.
There's a lot of pressure on the staff to find a couple readymade MAC starters this off-season via their high-major connections.