It's important to remember just how tremendously difficult it is to appoint a manager in any circumstances. Compare it with buying players. Clubs have frameworks, systems and staff in place to help them make good decisions when buying players, yet even the best clubs in that respect have misses. It's like American sports teams drafting college prospects. They have endless data on players that turn out well, players that don't, and those who are not considered to be good prospects but go on to have amazing careers. Yet even now, there's a huge rate of teams drafting players highly that flop, or missing out on very good players who are drafted very low. There's still so much luck in it, and it's the same with football transfers.
Yet with both draft picks and transfers, teams do it multiple times every year. They don't appoint managers nearly as often, so for me it's a much more difficult exercise. Remember that in Klopp's first year we didn't do all that well, and in fact his record was worse than Rodgers'. Before Rodgers, Hodgson was seen as a safe pair of hands with PL experience, and his tenure was disastrous. Dalglish's appointment was greeted with optimism bearing in mind he'd literally won the PL before, but that didn't go well either. We all wanted Klopp to do well, but did anyone seriously predict him to win the PL, CL, a few years cups, and reach so many finals and be so consistently competitive? I didn't, and now we need to appoint a manager to follow that, and we need to remember that we have no entitlement to a manager who can be anywhere near as good as Klopp. Such a candidate might not exist.
So really there may not be a right answer here. Alonso, Tuchel, and a handful of others who are in the frame may all do well. Or none of them might. The processes within the club will be more rigorous and they certainly have a better chance of making the right decision than we do, but there's every chance that they get it wrong and someone in this thread would have made a more successful choice. As we've seen, some previously successful managers do not do well and subsequent clubs. It's very difficult to tell.
There are two things that I think work in our favour here. The first is that we are, now, a well run club behind the scenes. That makes a big difference. You can see how it's crippling the likes of United and Chelsea. So that makes it more likely that any given manager will be successful. The second is that we are likely to have both patience and money. Patience because we're not like a Real Madrid or Bayern who will replace a manager after losing a few games. We know success takes time and the new manager will have that. We'll probably have money because I expect Salah to go for £100m+ in the summer, so there should be funds available to shape the team. Again, both of those things help a manager to bed in.
With all of that said, I'd like to see us take a chance on Alonso. His lack of experience goes against him, but he's a very intelligent guy and has by all accounts absolutely dedicated himself to learning his managerial craft. Winning the league with Leverkusen is a massive achievement; certainly more impressive than Gerrard winning the league with Rangers and arguably more impressive than Benitez winning La Liga with Valencia back in the day. I think he's a higher risk option that someone like Tuchel, but he's also a higher reward option. If he does turn out to be as good as his potential suggests, we could have massive success with him. I am concerned that we won't get him though. Madrid and Bayern want him too, both clubs that he's played for. One with a massive global profile and one the same country that he's currently living in. As much as he had a lot of success with us, I think we may struggle to convince him. The one point in our favour is that we're not a club that comes around very often. Madrid and Bayern sack managers regularly. We do not. So if he's interested in the Liverpool job, it might be his only chance. We'll give him time to. If he goes for Bayern or Madrid and doesn't have immediate success, he'll be out the door and Liverpool won't be available.