Does Track and Field NEED These Changes?

Specifically:

• Reducing (or removing) the minimum reaction time in sprint events
• Measuring long jump from the place actually jumped
• Measuring pole vault based on height actually achieved rather than bar height
• Javelin use of flags to avoid bothering with measuring obviously-shorter throws than an athlete's best
• A 1-mile steeplechase
• New camera angles/use of drones for footage