Personally I wouldn't take the backup directly to a network drive. Instead I'd do it in two phases:
- Take the backup to a local directory
- Copy the backup to remote directory
The reason for this is that this way the backup is always taken properly regardless of possible network problems and the duration of the backup isn't affected by the network speed.
Of course it's vital to copy the backup to the remote server or some other safe place so I'd include the copy operation to the job that creates the backup. This way it would be easy to set up the error notifications etc.