Is there ever a good time to make a change? Probably not.
Is there ever a good time to start investigating whether to make a change? Yes – Now!
If there is something not quite right, something that you know could be better, improved upon, made slicker, faster or more robust, the time to start thinking about the possibility of making the change is now.
Think about it; you’ve identified that a change is likely. It’s probable that it will happen at some time. Well, wouldn’t you have more time to think, plan, reflect, test, reject etc. if you made a start now?