The Cubs and Angels should talk about Geovany Soto. They really want a catcher.
Maybe a Morales, Soto base trade. He does bat left-naded (switch, not a bad defender, hits for average (at times I must say), a middle of the order bat. Just like Soto, this will be his 2nd year of arb. He made just a little under 3M last year, so he's a cheap option and the Cubs could then look elsehwere to improve.
Instead of going after Fielder, they can trade for Morales and put the money to Cespedes, Darvish and/or MLB players.
Before I forget, he's been injured because of his surgery that didn't go very well. One of the Angels top prospects is a 1B whom is Mark Trumbo. So...they may be fine or instead pursue Fielder of which has been mentioned.
So...a Soto/Morales base trade doesn't sound too bad. I think Castillo can do the same or better than Soto. Then Clevenger can be the back-up in place of Hill or a catching platoon. I guess there could be the free agent route too, but I would eb fine with them platooning.