Tech Be Nimble
UDL (or Universal Design for Learning) offers some really excellent affordances when it comes to staying nimble. If your entire curriculum is designed around the assumption of variation in learners and treats "difference" as "normal," you're prepared for anyone who walks through your classroom door. The best source of information that I've found for those interested in learning more about UDL is here: http://www.cast.org/udl/
Here's an infographic I put together with Canva for an upcoming Edcamp if you're interested in a quick summary:
Needs change. Technology changes. The best educational technology stays nimble.