Based on what and who, this is not a good thing. The remaining clarion voices for the quality "we" desire will be few, despite their stature. We have some great, visually stunning work being done, but it lacks in overall substance. Avatar's area will be a decent balance. Toy Story, a waste. SWL will be dramatically different in terms of anything that has ever been done in a theme park (attractions, immersion.) SWL will be a slightly stepped up version of Avatar.
Joe will be fine. His timing will be his own. Craig, not so much. Expect more quality in the next 10 years, but a healthy dose of value engineering.
No specific to the question of "change". More often than not, having institutional memory is the key to future success. Just take off the dead wood.
*1023*