2 - Involve the top management first
When change is happening, your managers need to be ready for it. You will need to show your employees that they believe in this improvement. Support from leaders will be a real key asset for you to show a unity image regarding the change. It will encourage lower levels to embrace the change as well.
3 - Implement the change to the rest of the team
Company have different hierarchy levels, do not underestimate the impact of lower position employees; they are part of the company and they need to be on board as well. Otherwise this change is unlikely to go well.
4 - Always set your employees for change
It is important that your employees always remember that change can happen anytime and that they have to prepare themselves for it. Some of them can think that their job and environment will stay still. Your speech needs to be clear, that your company is evolving, that change helps to stay dynamic and competitive. Change is a way to stay competitive and therefore to keep your position on the market.
5 - Try to be honest and not embellish the situation
The situation may be negative, maybe you have to cut salaries, to cut positions. This change will be taken as a bad change, it will impact negatively your company and your employees. Try to be honest and explain the main reasons that led to this change and decision. You should not embellish and try to present positive aspects because it may lead to a reject from your employees. Communicate the change but stay objective and clear without trying to sell your change.