The best laid plans of mice and men will often go awry (from Robert Burns poem: "To A Mouse"...and the from the book, "Of Mice and Men", by John Steinbeck)
Even though you know your destination and your team has taken action, you could still discover that you're headed the wrong direction. Many times people blindly try to reach their goal, heading down the wrong path Even when it is clear that they their journey is flawed.
If you find yourself leading your team toward a goal that is no longer what you desire, it is not only okay to re-assess your plans and change directions.....it is your duty to the team to do so.
There is no shame in saying "Oooppps, let's change our course". However, it is bad to keep running for the wrong goal line. If your team needs to revisit what success looks like, then the leader needs to bring everyone back together to revisit the plans.
On the other hand, by assessing your progress you may discover that everyone is going just great. Your team will appreciate the clarification and your complimentary attitude can help recommit their efforts.
In most cases your situation will be somewhere in between these two scenarios. In this case you can tweak the plans and adjust your goals, keeping everyone committed to achieving success.
Have A Great Day.