Alternative diesel machinery and historical ship plans

Could alternative diesel machinery improve the German capital-ship proposals?

A greater commitment to diesel propulsion is favoured as an alternative, but the proposed machinery was absent from the historical plans being assessed.

The proposed engine arrangement creates a substantially different ship from the design being assessed. A greater commitment to diesel propulsion, especially diesel-electric machinery, is favoured as an alternative German policy. That preference does not establish that the particular machinery was part of the historical plans. Its advantages therefore belong to an alternate-history design rather than the ship that was actually planned.