Why not use a view for computed columns? Is this not clearer?

I tried the fix, now I get the following when I try to create the SP:

Msg 2714, Level 16, State 1, Procedure uspEmailSQLServerHealth, Line 112

There is already an object named...

Pasted SP and get the following when running it...

Msg 8164, Level 16, State 1, Procedure sp_get_composite_job_info, Line 72

An INSERT EXEC statement cannot be nested.

Mail queued.

Yet is seems to work. ...