It is hard to imagine a worse place to have ended up besides maybe the Jets or possibly Washington. Even if he had been picked in the 1st round like the other three, only Watson will even smell the field in 2017 and that is a far superior situation much like Prescott in Dallas.
Kizer should not play in 2017. He isn't ready and many young qbs and destroyed playing too early on bad teams. As a young qb, he is best served by having an experienced qb to learn from and watch. At Cleveland, there isn't one. In the absence of a named starter and competing with Kessler and Hogan, the minute either on of those fail to perform, the chant will be to play Kizer even if he is not ready. He should sit all of 2017 but there will be pressure to play him in Cleveland.
Whatever you think of the Bears, Trubisky isn't going to play at all in 2017. Glennon as better than any qb that has been on Cleveland in the last 5 years. Trubisky is also 3rd on the depth chart as if Glennon goes down, Sanchez will play.
Kizer would have been best served at any team that had experienced qbs around and not have to play in 2017.