No. Lean IT is focused on automating manual processes to improve the speed of both using and building products. You can get most of the benefits without adopting any particular tooling or management approach. The practice is simply a way of thinking about how to improve the speed, quality, and cost of IT services.
However, DevOps is more than just a practice; it's an organization-wide activity that requires new roles, teams, and organizational structure to succeed. As with other evolutionary changes like Agile or Scrum, there are multiple ways to get the benefits while adopting specific practices in different ways.