Government knows that how their past experience was and wouldn't repeat the same mistake again and again. Now taking example of my area (Coimbatore-Chennai) Distance approx 450 kms.
2 superfast intercity types.
1.12679 Intercity
2.12676...
more... Kovai Express
3. Shatabdi Express
And many trains in a day around 15+
Same could be done one morning and one afternoon intercity type.