Fighters for Army!!...I think its neither feasible nor affordable, thats the reason that probably no Air or Army staff has ever considered implementing it.
Operating fighters is a cultural thing and needs a mindset where whole force is thinking on the same lines. The culture of PAF (and all other airforces of the world) has everything in place ,in order and trained in an environment for years that is fighter orientated. From a junior most technician to people on helm of affairs ,everyone understands the sensitivities, difficulties and are geared up to work in unison in fighters/jets environments.
Also consider the effects in terms of cost of acquiring new systems, training (air/ground crew) , infrastructure, support elements etc etc. Where will these guys be jet trained?? In Airforce academy?...I dont think so. PAF cannot generate such huge effort with its existing resources.
The biggest question that still lurks around is that even if we imagine that Army has got few squadrons of A-37 or K-8 or some other slow speed aircraft, then who will protect them in theatre against the formidable Indian BVR threat? With top speeds under 300 Knot, these aircrafts will be sitting ducks with nowhere to run. What and how much load they will be carrying?, with one small gun and few rockets how much punch they can generate in a single mission? So they cant protect themselves, they cant run either and carry very limited ammo !! Thats no good.
Someone might suggest a fighter escort for them but it means we are back to square one. If you have to employ fighter escorts then why not use fighters for this role from the start. Consider the load carrying capability and air-ground configuration of a single A-5 :-
* 2 x AIM 9 P air to air missile
* 2 x 760 lt Fuel Tanks ( for long range and endurance)
* 2 x 500 lb bombs ( in its under belly hard points)
* 2 x 8 , 57 mm rocket pods
* 2 x 23 mm guns ( 100 rounds each!!!)
* Self protection suite in terms of Radar Warning Receiver (RWR), Chaffs, Flares.
* Top speed : Mach 1.3
Now compare this load with e.g A-37 or K-8 or any other aircraft of this category! Using such aircrafts is neither operationally nor economically viable option. Why to send 12 or 15 vulnerable and slow movings for a job that can be done by a formation of 4 x A-5 or Mirages. What if these guys are intercepted by enemy fighters? Are we going to train Army pilots on air to air combat also?? Again, not an option. It takes years to master aerial combat tactics, and PAF pilots are trained for each and every situation/mission and with a flick of single switch, go into air to air mode and vice versa. In a conflict, situations can change in a second, It happened a lot in previous wars that formations that got airborne for air to ground missions, ended up flying air combat after being intercepted.
I strongly believe that fighters and missions like Close Air support, interdictions and strikes should remain with airforce. PAF has number of dedicated Squadrons that will not only support Army operations but Navy's as well, as they did in past. What we really need is that we understand each others operations well, respect limitations and increase the number of Ground attack squadrons whenever possible to further enhance the efforts for Army.