Lots of business programs of the sort where people spend much of their day in them should probably look and act more or less like "bad" old DOS keyboard-focused business programs. Instant responses to input, shortcut-driven. You watch someone use one of those who's been at it for even a few weeks, man, they're fast.
A very good touchscreen interface would probably be as good or better for cases in which typing isn't required, except that most touchscreen interfaces are terrible (janky, frequent missed presses, laggy enough that it's often unclear whether a press has been missed or it's just being slow, confusing navigation—see those new McDonalds ordering kiosks for all of the above) so that doesn't seem to be a realistic option unless you put some kind of UX dictator with great taste in charge of the project.
A very good touchscreen interface would probably be as good or better for cases in which typing isn't required, except that most touchscreen interfaces are terrible (janky, frequent missed presses, laggy enough that it's often unclear whether a press has been missed or it's just being slow, confusing navigation—see those new McDonalds ordering kiosks for all of the above) so that doesn't seem to be a realistic option unless you put some kind of UX dictator with great taste in charge of the project.