Sometimes people in my team (including a Mr. Know-It-All, as he is often leading the revolutionary charge) come up with some really good ideas or valid criticism.
If they require very little time and I think they will add value without affecting the rest, I say go ahead and do that, great job!
However, putting them into action would require drastic changes to the daily work plan or weekly schedule, and sometimes may stir conflict with upper management strategy.
My immediate concern as soon as they enthusiastically advertise their plans is that with our current workload (which is borderline with burned out!), considering or even suggesting those ideas to upper management sometimes carries the risk of stretching the team and force us to work until late night just to evaluate whether we should try out that idea.
We are usually expected to work a little bit late if we need to meet our daily objectives, but formulating new ones means being exhausted and stressed the next day.
What would you do in a situation like this?
Am I right to dismiss or postpone ideas based on workload schedule priorities?
Addition by OP:
REPLY/EDIT: Thank you for all the elaborate responses! I noticed that many of the answers are focused on project delivery and software development. I am not sure if it makes a big difference, but we are something like business developers and our daily objectives are measured mainly in financial metrics (though some of the ways to develop revenue are longer term plans, however with daily milestones).
Generally, my individual team members have a certain degree of autonomy in terms of "How" to achieve something, but not "What". For example, our objective for a day may be to generate X leads in market sector A. Everyone is working hard until late in the afternoon Mr. Know-It-All spots some potential clients in sector B. He is driven about getting them. Of course it would be rewarding to get those as well, but if we wanted those clients right now, everyone on the team would need to focus on it to make sure the process is well coordinated (Or Mr. Know-It-All gets to stay until midnight!).
There are times in which upper management might be happy that we got more sales through sector B, but often they don't take into consideration that this may cost some peoples' sleep time..