Three rule changes that can make T20s more interesting 

#3 Increase the quota of overs to be bowled by the bowlers

With a restriction of only 4 overs per bowler in T20s, most batsmen play out the leading bowlers and go after the less fancied ones. On most occasions, the bowling side's captain feel the pinch when the fifth bowler is brought on, who is usually a part-time option. If one of the four leading bowlers have had a bad night (which is very much a possibility) then it becomes a nightmare for the captain to look out for bowling options.

There could be a change in this law to increase the bowler's quota to 5 overs for any two bowlers, which means that the fifth bowler might have to bowl only 2 overs. This move could once again provide more challenges to the batsmen because they would have to go hard against good bowlers and that provides for an exciting viewing.