Like all Boeing airliners, a yoke is front and center for both the captain in left seat and the first officer in right seat. The control column contrasts to Airbus which uses a small side stick located on the left armrest for the captain and right armrest for the first officer.
One of the big goals in developing the 787 from the perspective of the pilots was to create a familiar cockpit for those who currently fly Boeing airplanes. An airline pilot flying the 777 can be transitioned to the 787 in just a few days.
The two large switches on the top of the left side of the yoke are the horizontal stabilizer trim switches. Pushing the buttons up or down causes the horizontal part of the tail to be changed in very small increments and is used during climb and descent to reduce the force needed on the control column. Other buttons include the autopilot disconnect and a push-to-talk button used to communicate on the radio.