When people learn something new we actually remember about 70% of what we learn. When that person then passes on the information to somebody else they also retain about 70% and so on. This is known in software as application erosion, and can be seen in methodologies - Scrum too. The challenge is to see what the team is doing, identify the gaps as rapidly as possible and then help them get back on track or simply remember the 30%. Rather than provide the solutions, our approach is to quickly guide the team through an assessment of their current situation and then facilitate their discussions on what changes to make so they are invested in the process and own it.