There are two issues that concern me, beyond the QB investment. #1 is the depth on our roster. Any injuries, to front line personnel, is going to cause a lot of grief. Because of lack of cap room, they had to sacrifice quality at the depth level, getting guys with low-ball contracts. This applies to both sides of the ball.
The #2 issue, in my mind, is how well the existing players actually do mesh, when it comes to playing meaningful games. How well versed will they be with each other? Will they know their tendencies, and play to that advantage. Familiarity is often the key to success. Because of that lack of depth, it could cause havoc in that field unity.
Above all, there is an issue that needs to be addressed early. The players need to buy into Love as the QB, and actually rally around him to be play makers. No matter what anyone thinks, football is a game where the intensity of your commitment on every play can make the difference between winning and losing.
Anyhow, these are my observations from a playing, and coaching perspective.