The bad news is that using scrum without agile development practices is not agile software delivery (and will collapse faster than you think).
Agile software delivery:
- Requires to be capable to put in production and operate a continuous train of product increments during all the product life.
- Fast feedback for each step of the value stream.
- Requires automatic testing and requires to include quality in the process.
- Good feedback for the system in production (monitoring, observability, operability, etc).
So if you are a tech company (why every company is a technology company) and you want to improve your business agility, don't forget to improve your agile software delivery capacity. If you have doubts, DevOps and XP are a great start to complement your scrum process.