Thiago is a definite upgrade on Keita. This is clear, but the downside is his age.
Bother Henderson and Thiago don't play more than 30 to 40 games a season. So it depends on Klopp's assessment of Curtis Johnson....whether he can replace Gini in the first team squad. If yes, then we don't really need to buy for midfield ( just keep one out of Keita, AOC Shaqiri) and focus on adding resources in defense and upfront. Hopefully the emphasis is again on quality over quantity...this has served Liverpool well in the last few years. Hope we don't suddenly ditch it and go back to Benitez days of buying a endless number of average players.