People get to caught up in the 4-3 vs 3-4. Id say that we can easily transition into the 4-3 with our current personnel. 4-3 under isn't too dissimilar to a 1 gap 3-4 scheme.
Not only are some of the underutilized guys better fits, but i can see our current baker group thriving too. Houston will make a great LEO or SAM, Jones is a perfect 3 tech, Nnadi is an amazing 1 tech, Hitchens will be much better in this scheme, and I even think Ford could have a roll as a LEO or SAM or in a wide 9 stance if we choose to keep him. Just upgrade the 5 tech, draft a coverage backer (or use DOD), and upgrade the safety/cb position.