He'd probably show great potential in the red ball as well if they backed him. Henderson says he needs to establish himself as a regular yet they haven't picked him for single game, so how do you do that?

He may well have to suck a dick at some point.
They don't pay their better players and they leave, they then sign guys who have lost their contracts from other counties for a pittance and wonder why they remain firmly at the bottom of the pile. They've recently sacked a few guys and have slimmed down their squad, but there's no telling who they'll sign this winter. Their strategy fails every year and they rinse and repeat.
They're boxing Welch into the T20 category, which is not the worst thing these days. If you do well you can make a living.
I'm pretty sure he will be targeting the T20 Blast and crossing fingers they pick him because a good showing opens doors. There's no guarantee he'll start, despite having almost the best opener stats last season in England, Leicestershire appear to share their brain cell with ZC.
Welch would have been tempted to throw in his lot with Zim if he'd had a decent offer, but what they appear to want is for a player to fail overseas and have to join the rank and file here and then miraculously become an international calibre player. Actually what they probably really want is for them to continue to do poorly locally so they feel better about the standard of the local game and not having to pay a liveable wage. Slave cricketers being herded from venue to venue playing back to back cricket to tick a box for ICC. They should put everyone in a container for transport, with 3 tier bunk beds, it would be cheaper. What happened to the Players' Union? The players actually have no bottle whatsoever, on and off the field. You often end up getting treated exactly as you deserve.
Despite our national side having done well recently anyone who has an inkling about cricket will be worried. Only Raza has won the games for us. We continue to be desperate for batsmen. Madhevere has shown he's reasonably comfortable but the others are not international calibre T20 batsmen, they're just not. Williams is either having a poor run or he's on the decline.
Ballance, Byrom, Muyeye, Welch and Shardendorf continue to offer potential solutions, but they have to prove they're shit first so they come begging. You pay peanuts and you get monkeys.