How to do Kaizen when overloaded

I responded to a tweet by Brant Roney containing a graph from a webinar held by Mark Graban and Dr. Greg Jacobson on “Making Time for Continuous Improvement”. I presented a question including a drawing on how to go about when there was no time for Kaizen, when the teams are constantly overloaded?

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What about when the graph constantly look like this?

My original tweet

An interesting discussion emerged and Mark Graban put some of it into a blog post “Can You Even Consider Kaizen When the Chart Showing Time and Workload Looks Like this?” featuring my initial question and drawing.