Shift gears - transition in a presentation or in a meeting

Ok, now I would like to __________________, and I would __________________ a bit of material science real quick and a bit of biological science __________________.

Now that __________________ the market __________________, let’s shift gears and __________________ our product development __________________ for the next __________________.

After discussing the company's __________________ for an hour, the CEO decided to shift gears and __________________ team morale and employee __________________.